CVE-2026-76464

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-76464", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "state": "PUBLISHED", "assignerShortName": "cisco", "dateReserved": "2026-08-19T12:02:03.637Z", "datePublished": "2026-10-07T16:18:42.243Z", "dateUpdated": "2026-11-07T17:29:44.817Z"}, "containers": {"cna": {"title": "Cisco Meraki Hardening Release October 2026 - Buffer Management Vulnerabilities", "metrics": [{"format": "cvssV3_1", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "baseScore": 9.6, "baseSeverity": "CRITICAL", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}}], "descriptions": [{"lang": "en", "value": "As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco networking engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.\r\n\r\nThe vulnerabilities tracked by this CVE-2026-76464 are related to buffer management issues that are grouped under the Common Weakness Enumeration (CWE) CWE-119."}], "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-meraki-os-drbEX9GH", "name": "cisco-sa-hardening-meraki-os-drbEX9GH"}], "exploits": [{"lang": "en", "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."}], "source": {"advisory": "cisco-sa-hardening-meraki-os-drbEX9GH", "discovery": "INTERNAL", "defects": ["CSCww61606"]}, "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Restriction of Operations within the Bounds of a Memory Buffer", "type": "cwe", "cweId": "CWE-119"}]}], "affected": [{"vendor": "Cisco", "product": "Cisco Campus Gateway Software", "versions": [{"version": "CG 33.1.3", "status": "affected"}], "defaultStatus": "unknown"}, {"vendor": "Cisco", "product": "Cisco Meraki MR Wireless Access Points Software", "versions": [{"version": "MR 33.1.2", "status": "affected"}, {"version": "MR 30.6", "status": "affected"}, {"version": "MR 32.1.7", "status": "affected"}, {"version": "MR 32.2.3", "status": "affected"}, {"version": "MR 32.2.4", "status": "affected"}, {"version": "MR 33.1.1", "status": "affected"}], "defaultStatus": "unknown"}, {"vendor": "Cisco", "product": "Cisco Meraki MV Firmware", "versions": [{"version": "4.20", "status": "affected"}, {"version": "5.0", "status": "affected"}, {"version": "5.1", "status": "affected"}, {"version": "5.2", "status": "affected"}, {"version": "5.3", "status": "affected"}, {"version": "5.4", "status": "affected"}, {"version": "5.4.1", "status": "affected"}, {"version": "5.5", "status": "affected"}, {"version": "5.5.1", "status": "affected"}, {"version": "5.6", "status": "affected"}, {"version": "5.6.1", "status": "affected"}, {"version": "6.0", "status": "affected"}, {"version": "6.0.1", "status": "affected"}, {"version": "5.6.2", "status": "affected"}, {"version": "6.0.2", "status": "affected"}, {"version": "6.1", "status": "affected"}, {"version": "6.1.1", "status": "affected"}, {"version": "6.1.2", "status": "affected"}, {"version": "6.2", "status": "affected"}, {"version": "6.2.1", "status": "affected"}, {"version": "6.2.2", "status": "affected"}, {"version": "6.3", "status": "affected"}, {"version": "6.3.2", "status": "affected"}, {"version": "2.0", "status": "affected"}, {"version": "2.1", "status": "affected"}, {"version": "2.2", "status": "affected"}, {"version": "3.0", "status": "affected"}, {"version": "3.1", "status": "affected"}, {"version": "3.2", "status": "affected"}, {"version": "3.3", "status": "affected"}, {"version": "3.4", "status": "affected"}, {"version": "3.5", "status": "affected"}, {"version": "3.6", "status": "affected"}, {"version": "3.7", "status": "affected"}, {"version": "3.8", "status": "affected"}, {"version": "3.9", "status": "affected"}, {"version": "3.10", "status": "affected"}, {"version": "3.11", "status": "affected"}, {"version": "3.12", "status": "affected"}, {"version": "3.13", "status": "affected"}, {"version": "3.14", "status": "affected"}, {"version": "3.15", "status": "affected"}, {"version": "3.16", "status": "affected"}, {"version": "3.17", "status": "affected"}, {"version": "3.18", "status": "affected"}, {"version": "3.19", "status": "affected"}, {"version": "3.20", "status": "affected"}, {"version": "3.21", "status": "affected"}, {"version": "3.22", "status": "affected"}, {"version": "3.23", "status": "affected"}, {"version": "3.24", "status": "affected"}, {"version": "3.25", "status": "affected"}, {"version": "3.26", "status": "affected"}, {"version": "3.27", "status": "affected"}, {"version": "3.28", "status": "affected"}, {"version": "3.29", "status": "affected"}, {"version": "3.30", "status": "affected"}, {"version": "3.31", "status": "affected"}, {"version": "3.32", "status": "affected"}, {"version": "3.33", "status": "affected"}, {"version": "3.34", "status": "affected"}, {"version": "3.35", "status": "affected"}, {"version": "3.36", "status": "affected"}, {"version": "4.0", "status": "affected"}, {"version": "4.1", "status": "affected"}, {"version": "4.2", "status": "affected"}, {"version": "4.3", "status": "affected"}, {"version": "4.4", "status": "affected"}, {"version": "4.5", "status": "affected"}, {"version": "4.6", "status": "affected"}, {"version": "4.7", "status": "affected"}, {"version": "4.8", "status": "affected"}, {"version": "4.9", "status": "affected"}, {"version": "4.10", "status": "affected"}, {"version": "4.11", "status": "affected"}, {"version": "4.12", "status": "affected"}, {"version": "4.13", "status": "affected"}, {"version": "4.14", "status": "affected"}, {"version": "4.15", "status": "affected"}, {"version": "4.16", "status": "affected"}, {"version": "4.17", "status": "affected"}, {"version": "4.18", "status": "affected"}, {"version": "4.18.1", "status": "affected"}, {"version": "4.19", "status": "affected"}, {"version": "MV 7.3", "status": "affected"}, {"version": "MV 7.3.1", "status": "affected"}, {"version": "MV 7.3.2", "status": "affected"}, {"version": "MV 7.2.1", "status": "affected"}, {"version": "MV 7.2.2", "status": "affected"}], "defaultStatus": "unknown"}, {"vendor": "Cisco", "product": "Cisco Meraki MX Firmware", "versions": [{"version": "16.2", "status": "affected"}, {"version": "16.3", "status": "affected"}, {"version": "16.4", "status": "affected"}, {"version": "16.5", "status": "affected"}, {"version": "16.6", "status": "affected"}, {"version": "17.3", "status": "affected"}, {"version": "17.6", "status": "affected"}, {"version": "17.7", "status": "affected"}, {"version": "17.8", "status": "affected"}, {"version": "17.9", "status": "affected"}, {"version": "17.10", "status": "affected"}, {"version": "18.1", "status": "affected"}, {"version": "18.2", "status": "affected"}, {"version": "19.1", "status": "affected"}, {"version": "MX 18.211.2", "status": "affected"}, {"version": "MX 26.2.1", "status": "affected"}, {"version": "MX 19.2.8", "status": "affected"}, {"version": "MX 26.2.2", "status": "affected"}, {"version": "MX 26.1.4", "status": "affected"}, {"version": "MX 26.1.5", "status": "affected"}, {"version": "MX 26.1.6", "status": "affected"}], "defaultStatus": "unknown"}], "providerMetadata": {"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2026-10-16T03:13:48.023Z"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-07T18:01:54.754606Z", "id": "CVE-2026-76464", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-07T18:05:14.042Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-11-07T17:29:44.817Z"}, "descriptions": [{"lang": "en", "value": "The CVE Program recognizes that this CVE Record provides vulnerability information that a Supplier CNA believes is very important to consumers. The CVE Program has flagged this CVE Record as it assigns a single CVE ID to a collection of individual vulnerabilities which does not align with CVE's \"one vulnerability, one ID\" principle, and therefore provides incomplete information. For further clarification, please see the CVE Program's blog, \"Preserving Vulnerability-Level Identification\" linked below. Details within the CNA container below are viewable by clicking on the CNA name."}], "tags": ["x_bundling-flagged-by-CVE-Program"], "references": [{"url": "https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification"}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"tags": ["x_bundling-flagged-by-CVE-Program"], "references": [{"url": "https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification"}], "descriptions": [{"lang": "en", "value": "The CVE Program recognizes that this CVE Record provides vulnerability information that a Supplier CNA believes is very important to consumers. The CVE Program has flagged this CVE Record as it assigns a single CVE ID to a collection of individual vulnerabilities which does not align with CVE's \"one vulnerability, one ID\" principle, and therefore provides incomplete information. For further clarification, please see the CVE Program's blog, \"Preserving Vulnerability-Level Identification\" linked below. Details within the CNA container below are viewable by clicking on the CNA name."}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-11-07T17:29:44.817Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-76464", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-07T18:01:54.754606Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-07T18:01:55.358Z"}}], "cna": {"title": "Cisco Meraki Hardening Release October 2026 - Buffer Management Vulnerabilities", "source": {"defects": ["CSCww61606"], "advisory": "cisco-sa-hardening-meraki-os-drbEX9GH", "discovery": "INTERNAL"}, "metrics": [{"format": "cvssV3_1", "cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.6, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "Cisco", "product": "Cisco Campus Gateway Software", "versions": [{"status": "affected", "version": "CG 33.1.3"}], "defaultStatus": "unknown"}, {"vendor": "Cisco", "product": "Cisco Meraki MR Wireless Access Points Software", "versions": [{"status": "affected", "version": "MR 33.1.2"}, {"status": "affected", "version": "MR 30.6"}, {"status": "affected", "version": "MR 32.1.7"}, {"status": "affected", "version": "MR 32.2.3"}, {"status": "affected", "version": "MR 32.2.4"}, {"status": "affected", "version": "MR 33.1.1"}], "defaultStatus": "unknown"}, {"vendor": "Cisco", "product": "Cisco Meraki MV Firmware", "versions": [{"status": "affected", "version": "4.20"}, {"status": "affected", "version": "5.0"}, {"status": "affected", "version": "5.1"}, {"status": "affected", "version": "5.2"}, {"status": "affected", "version": "5.3"}, {"status": "affected", "version": "5.4"}, {"status": "affected", "version": "5.4.1"}, {"status": "affected", "version": "5.5"}, {"status": "affected", "version": "5.5.1"}, {"status": "affected", "version": "5.6"}, {"status": "affected", "version": "5.6.1"}, {"status": "affected", "version": "6.0"}, {"status": "affected", "version": "6.0.1"}, {"status": "affected", "version": "5.6.2"}, {"status": "affected", "version": "6.0.2"}, {"status": "affected", "version": "6.1"}, {"status": "affected", "version": "6.1.1"}, {"status": "affected", "version": "6.1.2"}, {"status": "affected", "version": "6.2"}, {"status": "affected", "version": "6.2.1"}, {"status": "affected", "version": "6.2.2"}, {"status": "affected", "version": "6.3"}, {"status": "affected", "version": "6.3.2"}, {"status": "affected", "version": "2.0"}, {"status": "affected", "version": "2.1"}, {"status": "affected", "version": "2.2"}, {"status": "affected", "version": "3.0"}, {"status": "affected", "version": "3.1"}, {"status": "affected", "version": "3.2"}, {"status": "affected", "version": "3.3"}, {"status": "affected", "version": "3.4"}, {"status": "affected", "version": "3.5"}, {"status": "affected", "version": "3.6"}, {"status": "affected", "version": "3.7"}, {"status": "affected", "version": "3.8"}, {"status": "affected", "version": "3.9"}, {"status": "affected", "version": "3.10"}, {"status": "affected", "version": "3.11"}, {"status": "affected", "version": "3.12"}, {"status": "affected", "version": "3.13"}, {"status": "affected", "version": "3.14"}, {"status": "affected", "version": "3.15"}, {"status": "affected", "version": "3.16"}, {"status": "affected", "version": "3.17"}, {"status": "affected", "version": "3.18"}, {"status": "affected", "version": "3.19"}, {"status": "affected", "version": "3.20"}, {"status": "affected", "version": "3.21"}, {"status": "affected", "version": "3.22"}, {"status": "affected", "version": "3.23"}, {"status": "affected", "version": "3.24"}, {"status": "affected", "version": "3.25"}, {"status": "affected", "version": "3.26"}, {"status": "affected", "version": "3.27"}, {"status": "affected", "version": "3.28"}, {"status": "affected", "version": "3.29"}, {"status": "affected", "version": "3.30"}, {"status": "affected", "version": "3.31"}, {"status": "affected", "version": "3.32"}, {"status": "affected", "version": "3.33"}, {"status": "affected", "version": "3.34"}, {"status": "affected", "version": "3.35"}, {"status": "affected", "version": "3.36"}, {"status": "affected", "version": "4.0"}, {"status": "affected", "version": "4.1"}, {"status": "affected", "version": "4.2"}, {"status": "affected", "version": "4.3"}, {"status": "affected", "version": "4.4"}, {"status": "affected", "version": "4.5"}, {"status": "affected", "version": "4.6"}, {"status": "affected", "version": "4.7"}, {"status": "affected", "version": "4.8"}, {"status": "affected", "version": "4.9"}, {"status": "affected", "version": "4.10"}, {"status": "affected", "version": "4.11"}, {"status": "affected", "version": "4.12"}, {"status": "affected", "version": "4.13"}, {"status": "affected", "version": "4.14"}, {"status": "affected", "version": "4.15"}, {"status": "affected", "version": "4.16"}, {"status": "affected", "version": "4.17"}, {"status": "affected", "version": "4.18"}, {"status": "affected", "version": "4.18.1"}, {"status": "affected", "version": "4.19"}, {"status": "affected", "version": "MV 7.3"}, {"status": "affected", "version": "MV 7.3.1"}, {"status": "affected", "version": "MV 7.3.2"}, {"status": "affected", "version": "MV 7.2.1"}, {"status": "affected", "version": "MV 7.2.2"}], "defaultStatus": "unknown"}, {"vendor": "Cisco", "product": "Cisco Meraki MX Firmware", "versions": [{"status": "affected", "version": "16.2"}, {"status": "affected", "version": "16.3"}, {"status": "affected", "version": "16.4"}, {"status": "affected", "version": "16.5"}, {"status": "affected", "version": "16.6"}, {"status": "affected", "version": "17.3"}, {"status": "affected", "version": "17.6"}, {"status": "affected", "version": "17.7"}, {"status": "affected", "version": "17.8"}, {"status": "affected", "version": "17.9"}, {"status": "affected", "version": "17.10"}, {"status": "affected", "version": "18.1"}, {"status": "affected", "version": "18.2"}, {"status": "affected", "version": "19.1"}, {"status": "affected", "version": "MX 18.211.2"}, {"status": "affected", "version": "MX 26.2.1"}, {"status": "affected", "version": "MX 19.2.8"}, {"status": "affected", "version": "MX 26.2.2"}, {"status": "affected", "version": "MX 26.1.4"}, {"status": "affected", "version": "MX 26.1.5"}, {"status": "affected", "version": "MX 26.1.6"}], "defaultStatus": "unknown"}], "exploits": [{"lang": "en", "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."}], "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-meraki-os-drbEX9GH", "name": "cisco-sa-hardening-meraki-os-drbEX9GH"}], "descriptions": [{"lang": "en", "value": "As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco networking engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.\r\n\r\nThe vulnerabilities tracked by this CVE-2026-76464 are related to buffer management issues that are grouped under the Common Weakness Enumeration (CWE) CWE-119."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "cwe", "cweId": "CWE-119", "description": "Improper Restriction of Operations within the Bounds of a Memory Buffer"}]}], "providerMetadata": {"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2026-10-16T03:13:48.023Z"}}}, "cveMetadata": {"cveId": "CVE-2026-76464", "state": "PUBLISHED", "dateUpdated": "2026-11-07T17:29:44.817Z", "dateReserved": "2026-08-19T12:02:03.637Z", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "datePublished": "2026-10-07T16:18:42.243Z", "assignerShortName": "cisco"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unknown", "product": "Cisco Campus Gateway Software", "vendor": "Cisco", "versions": [{"status": "affected", "version": "CG 33.1.3"}]}, {"defaultStatus": "unknown", "product": "Cisco Meraki MR Wireless Access Points Software", "vendor": "Cisco", "versions": [{"status": "affected", "version": "MR 33.1.2"}, {"status": "affected", "version": "MR 30.6"}, {"status": "affected", "version": "MR 32.1.7"}, {"status": "affected", "version": "MR 32.2.3"}, {"status": "affected", "version": "MR 32.2.4"}, {"status": "affected", "version": "MR 33.1.1"}]}, {"defaultStatus": "unknown", "product": "Cisco Meraki MV Firmware", "vendor": "Cisco", "versions": [{"status": "affected", "version": "4.20"}, {"status": "affected", "version": "5.0"}, {"status": "affected", "version": "5.1"}, {"status": "affected", "version": "5.2"}, {"status": "affected", "version": "5.3"}, {"status": "affected", "version": "5.4"}, {"status": "affected", "version": "5.4.1"}, {"status": "affected", "version": "5.5"}, {"status": "affected", "version": "5.5.1"}, {"status": "affected", "version": "5.6"}, {"status": "affected", "version": "5.6.1"}, {"status": "affected", "version": "6.0"}, {"status": "affected", "version": "6.0.1"}, {"status": "affected", "version": "5.6.2"}, {"status": "affected", "version": "6.0.2"}, {"status": "affected", "version": "6.1"}, {"status": "affected", "version": "6.1.1"}, {"status": "affected", "version": "6.1.2"}, {"status": "affected", "version": "6.2"}, {"status": "affected", "version": "6.2.1"}, {"status": "affected", "version": "6.2.2"}, {"status": "affected", "version": "6.3"}, {"status": "affected", "version": "6.3.2"}, {"status": "affected", "version": "2.0"}, {"status": "affected", "version": "2.1"}, {"status": "affected", "version": "2.2"}, {"status": "affected", "version": "3.0"}, {"status": "affected", "version": "3.1"}, {"status": "affected", "version": "3.2"}, {"status": "affected", "version": "3.3"}, {"status": "affected", "version": "3.4"}, {"status": "affected", "version": "3.5"}, {"status": "affected", "version": "3.6"}, {"status": "affected", "version": "3.7"}, {"status": "affected", "version": "3.8"}, {"status": "affected", "version": "3.9"}, {"status": "affected", "version": "3.10"}, {"status": "affected", "version": "3.11"}, {"status": "affected", "version": "3.12"}, {"status": "affected", "version": "3.13"}, {"status": "affected", "version": "3.14"}, {"status": "affected", "version": "3.15"}, {"status": "affected", "version": "3.16"}, {"status": "affected", "version": "3.17"}, {"status": "affected", "version": "3.18"}, {"status": "affected", "version": "3.19"}, {"status": "affected", "version": "3.20"}, {"status": "affected", "version": "3.21"}, {"status": "affected", "version": "3.22"}, {"status": "affected", "version": "3.23"}, {"status": "affected", "version": "3.24"}, {"status": "affected", "version": "3.25"}, {"status": "affected", "version": "3.26"}, {"status": "affected", "version": "3.27"}, {"status": "affected", "version": "3.28"}, {"status": "affected", "version": "3.29"}, {"status": "affected", "version": "3.30"}, {"status": "affected", "version": "3.31"}, {"status": "affected", "version": "3.32"}, {"status": "affected", "version": "3.33"}, {"status": "affected", "version": "3.34"}, {"status": "affected", "version": "3.35"}, {"status": "affected", "version": "3.36"}, {"status": "affected", "version": "4.0"}, {"status": "affected", "version": "4.1"}, {"status": "affected", "version": "4.2"}, {"status": "affected", "version": "4.3"}, {"status": "affected", "version": "4.4"}, {"status": "affected", "version": "4.5"}, {"status": "affected", "version": "4.6"}, {"status": "affected", "version": "4.7"}, {"status": "affected", "version": "4.8"}, {"status": "affected", "version": "4.9"}, {"status": "affected", "version": "4.10"}, {"status": "affected", "version": "4.11"}, {"status": "affected", "version": "4.12"}, {"status": "affected", "version": "4.13"}, {"status": "affected", "version": "4.14"}, {"status": "affected", "version": "4.15"}, {"status": "affected", "version": "4.16"}, {"status": "affected", "version": "4.17"}, {"status": "affected", "version": "4.18"}, {"status": "affected", "version": "4.18.1"}, {"status": "affected", "version": "4.19"}, {"status": "affected", "version": "MV 7.3"}, {"status": "affected", "version": "MV 7.3.1"}, {"status": "affected", "version": "MV 7.3.2"}, {"status": "affected", "version": "MV 7.2.1"}, {"status": "affected", "version": "MV 7.2.2"}]}, {"defaultStatus": "unknown", "product": "Cisco Meraki MX Firmware", "vendor": "Cisco", "versions": [{"status": "affected", "version": "16.2"}, {"status": "affected", "version": "16.3"}, {"status": "affected", "version": "16.4"}, {"status": "affected", "version": "16.5"}, {"status": "affected", "version": "16.6"}, {"status": "affected", "version": "17.3"}, {"status": "affected", "version": "17.6"}, {"status": "affected", "version": "17.7"}, {"status": "affected", "version": "17.8"}, {"status": "affected", "version": "17.9"}, {"status": "affected", "version": "17.10"}, {"status": "affected", "version": "18.1"}, {"status": "affected", "version": "18.2"}, {"status": "affected", "version": "19.1"}, {"status": "affected", "version": "MX 18.211.2"}, {"status": "affected", "version": "MX 26.2.1"}, {"status": "affected", "version": "MX 19.2.8"}, {"status": "affected", "version": "MX 26.2.2"}, {"status": "affected", "version": "MX 26.1.4"}, {"status": "affected", "version": "MX 26.1.5"}, {"status": "affected", "version": "MX 26.1.6"}]}], "source": "psirt@cisco.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco networking engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.\r\n\r\nThe vulnerabilities tracked by this CVE-2026-76464 are related to buffer management issues that are grouped under the Common Weakness Enumeration (CWE) CWE-119."}], "id": "CVE-2026-76464", "lastModified": "2026-11-07T18:17:24.910", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.6, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 6.0, "source": "psirt@cisco.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-76464", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-07T18:01:54.754606Z", "version": "2.0.3"}}]}, "published": "2026-10-07T17:16:59.053", "references": [{"source": "psirt@cisco.com", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-meraki-os-drbEX9GH"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}], "source": "psirt@cisco.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "CG 33.1.3"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "Cisco Campus Gateway Software", "source": "cna", "vendor": "Cisco"}, "product": "campus_gateway_software", "vendor": "cisco"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MR 33.1.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MR 30.6"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MR 32.1.7"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MR 32.2.3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MR 32.2.4"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MR 33.1.1"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "Cisco Meraki MR Wireless Access Points Software", "source": "cna", "vendor": "Cisco"}, "product": "meraki_mr_wireless_access_point_software", "vendor": "cisco"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.20"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.4"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.4.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.5"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.5.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.6"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.6.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.0.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.6.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.1.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.1.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.2.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.2.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.3.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.4"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.5"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.6"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.7"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.8"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.9"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.10"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.11"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.12"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.13"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.14"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.15"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.16"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.17"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.18"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.19"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.20"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.21"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.22"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.23"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.24"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.25"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.26"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.27"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.28"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.29"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.30"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.31"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.32"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.33"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.34"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.35"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.36"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.4"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.5"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.6"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.7"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.8"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.9"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.10"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.11"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.12"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.13"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.14"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.15"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.16"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.17"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.18"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.18.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.19"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MV 7.3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MV 7.3.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MV 7.3.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MV 7.2.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MV 7.2.2"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "Cisco Meraki MV Firmware", "source": "cna", "vendor": "Cisco"}, "product": "meraki_mv_firmware", "vendor": "cisco"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "16.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "16.3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "16.4"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "16.5"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "16.6"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "17.3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "17.6"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "17.7"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "17.8"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "17.9"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "17.10"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "18.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "18.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "19.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MX 18.211.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MX 26.2.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MX 19.2.8"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MX 26.2.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MX 26.1.4"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MX 26.1.5"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MX 26.1.6"}}], "enrichment": {"confidence": 89.0, "confidence_source": "matching", "scores": [{"score": 89.0, "source": "matching"}]}, "original": {"product": "Cisco Meraki MX Firmware", "source": "cna", "vendor": "Cisco"}, "product": "meraki_mx_firmware", "vendor": "cisco"}], "created": "2026-10-07T18:15:14.534801+00:00", "updated": "2026-10-09T08:15:09.213022+00:00", "vendors": ["cisco", "cisco$PRODUCT$campus_gateway_software", "cisco$PRODUCT$meraki_mr_wireless_access_point_software", "cisco$PRODUCT$meraki_mv_firmware", "cisco$PRODUCT$meraki_mx_firmware"]}