CVE-2026-3378

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-3378", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-02-28T06:55:36.748Z", "datePublished": "2026-03-01T02:02:09.619Z", "dateUpdated": "2026-05-05T18:33:00.191Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-03-01T02:02:09.619Z"}, "title": "Tenda F453 qossetting fromqossetting buffer overflow", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-120", "lang": "en", "description": "Buffer Overflow"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-119", "lang": "en", "description": "Memory Corruption"}]}], "affected": [{"vendor": "Tenda", "product": "F453", "versions": [{"version": "1.0.0.3", "status": "affected"}], "cpes": ["cpe:2.3:o:tenda:f453_firmware:*:*:*:*:*:*:*:*"]}], "descriptions": [{"lang": "en", "value": "A flaw has been found in Tenda F453 1.0.0.3. This affects the function fromqossetting of the file /goform/qossetting. Executing a manipulation of the argument qos can lead to buffer overflow. The attack can be launched remotely. The exploit has been published and may be used."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 8.7, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P", "baseSeverity": "HIGH"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R", "baseSeverity": "HIGH"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 8.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R", "baseSeverity": "HIGH"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 9, "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR"}}], "timeline": [{"time": "2026-02-28T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-02-28T01:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-02-28T08:00:49.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "LtzHust2 (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/?id.348263", "name": "VDB-348263 | Tenda F453 qossetting fromqossetting buffer overflow", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/?ctiid.348263", "name": "VDB-348263 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/?submit.759625", "name": "Submit #759625 | Tenda F453 v1.0.0.3 Buffer Access Using Size of Source Buffer", "tags": ["third-party-advisory"]}, {"url": "https://github.com/Litengzheng/vul_db/blob/main/F453/vul_78/README.md", "tags": ["exploit"]}, {"url": "https://www.tenda.com.cn/", "tags": ["product"]}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-05T18:32:54.423150Z", "id": "CVE-2026-3378", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"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": "2026-05-05T18:33:00.191Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-3378", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-05-05T18:32:54.423150Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-06T14:59:55.812Z"}}], "cna": {"title": "Tenda F453 qossetting fromqossetting buffer overflow", "credits": [{"lang": "en", "type": "reporter", "value": "LtzHust2 (VulDB User)"}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 8.7, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 8.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 8.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 9, "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR"}}], "affected": [{"cpes": ["cpe:2.3:o:tenda:f453_firmware:*:*:*:*:*:*:*:*"], "vendor": "Tenda", "product": "F453", "versions": [{"status": "affected", "version": "1.0.0.3"}]}], "timeline": [{"lang": "en", "time": "2026-02-28T00:00:00.000Z", "value": "Advisory disclosed"}, {"lang": "en", "time": "2026-02-28T01:00:00.000Z", "value": "VulDB entry created"}, {"lang": "en", "time": "2026-02-28T08:00:49.000Z", "value": "VulDB entry last update"}], "references": [{"url": "https://vuldb.com/?id.348263", "name": "VDB-348263 | Tenda F453 qossetting fromqossetting buffer overflow", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/?ctiid.348263", "name": "VDB-348263 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/?submit.759625", "name": "Submit #759625 | Tenda F453 v1.0.0.3 Buffer Access Using Size of Source Buffer", "tags": ["third-party-advisory"]}, {"url": "https://github.com/Litengzheng/vul_db/blob/main/F453/vul_78/README.md", "tags": ["exploit"]}, {"url": "https://www.tenda.com.cn/", "tags": ["product"]}], "descriptions": [{"lang": "en", "value": "A flaw has been found in Tenda F453 1.0.0.3. This affects the function fromqossetting of the file /goform/qossetting. Executing a manipulation of the argument qos can lead to buffer overflow. The attack can be launched remotely. The exploit has been published and may be used."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-120", "description": "Buffer Overflow"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-119", "description": "Memory Corruption"}]}], "providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-03-01T02:02:09.619Z"}}}, "cveMetadata": {"cveId": "CVE-2026-3378", "state": "PUBLISHED", "dateUpdated": "2026-05-05T18:33:00.191Z", "dateReserved": "2026-02-28T06:55:36.748Z", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "datePublished": "2026-03-01T02:02:09.619Z", "assignerShortName": "VulDB"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:o:tenda:f453_firmware:*:*:*:*:*:*:*:*"], "product": "F453", "vendor": "Tenda", "versions": [{"status": "affected", "version": "1.0.0.3"}]}], "source": "cna@vuldb.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:tenda:f453_firmware:1.0.0.3:*:*:*:*:*:*:*", "matchCriteriaId": "66CB876C-7D99-4A12-91E3-FE153293C3F2", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:tenda:f453:-:*:*:*:*:*:*:*", "matchCriteriaId": "0B2C42B3-1621-4323-BAA4-4B71C33F7C4B", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw has been found in Tenda F453 1.0.0.3. This affects the function fromqossetting of the file /goform/qossetting. Executing a manipulation of the argument qos can lead to buffer overflow. The attack can be launched remotely. The exploit has been published and may be used."}, {"lang": "es", "value": "Se ha encontrado una vulnerabilidad en Tenda F453 1.0.0.3, la cual afecta a la funci\u00f3n fromqossetting del archivo /goform/qossetting. Manipular el argumento qos puede conducir a un desbordamiento de b\u00fafer. El ataque puede lanzarse en remoto. El exploit ha sido publicado y puede ser utilizado."}], "id": "CVE-2026-3378", "lastModified": "2026-06-17T10:43:29.400", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "COMPLETE", "baseScore": 9.0, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "cna@vuldb.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-3378", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-05-05T18:32:54.423150Z", "version": "2.0.3"}}]}, "published": "2026-03-01T03:16:15.103", "references": [{"source": "cna@vuldb.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/Litengzheng/vul_db/blob/main/F453/vul_78/README.md"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required", "VDB Entry"], "url": "https://vuldb.com/?ctiid.348263"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?id.348263"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?submit.759625"}, {"source": "cna@vuldb.com", "tags": ["Product"], "url": "https://www.tenda.com.cn/"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-120"}], "source": "cna@vuldb.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.0.0.3"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "F453", "source": "cna", "vendor": "Tenda"}, "product": "f453", "vendor": "tenda"}], "analysis": {"en": {"generated_at": "2026-04-17T13:47:47.276102+00:00", "value": {"mitigation_remediation": ["Update the device firmware to a version that fixes the QoS buffer overflow.", "Restrict or block remote access to the /goform/qossetting endpoint by configuring firewall rules or disabling remote management.", "Monitor HTTP traffic to the router for unexpected POST requests to /goform/qossetting and alert on anomalous activity."], "summary": {"action": "Update firmware", "impact": "Remote buffer overflow"}, "threat_synthesis": {"affected_systems": "This vulnerability is limited to the Tenda F453 router running firmware version 1.0.0.3. No other firmware revisions are documented as affected.", "description_and_impact": "The vendor firmware for the Tenda F453 router contains a buffer overflow in the fromqossetting function located in the /goform/qossetting web endpoint. When an attacker supplies a specially crafted qos parameter in an HTTP request, the overflow can corrupt memory and potentially allow the attacker to execute arbitrary code or crash the device.", "risk_and_exploitability": "The flaw carries a CVSS score of 8.7, indicating high severity. EPSS indicates a very low exploitation probability (<1%). The vulnerability is not listed in the CISA KEV catalog. The attack vector is remote, requiring the attacker to access the router\u2019s administrative web interface over HTTP and send the malicious qos payload."}}}}, "created": "2026-03-02T12:04:13.877427+00:00", "updated": "2026-04-17T14:00:15.796778+00:00", "vendors": ["tenda", "tenda$PRODUCT$f453"]}