CVE-2026-21120

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-21120", "assignerOrgId": "3af57064-a867-422c-b2ad-40307b65c458", "state": "PUBLISHED", "assignerShortName": "SamsungMobile", "dateReserved": "2025-12-11T01:33:35.832Z", "datePublished": "2026-10-12T04:57:36.033Z", "dateUpdated": "2026-10-13T03:55:29.767Z"}, "containers": {"cna": {"problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-416 Use after free"}]}], "affected": [{"vendor": "Samsung Mobile", "product": "Samsung Mobile Devices", "versions": [{"status": "unaffected", "version": "SMR Oct-2026 Release in Android 14, 15, 16, 17", "versionType": "semver", "lessThan": "*"}], "defaultStatus": "affected"}], "descriptions": [{"lang": "en", "value": "Use after free in WSM service prior to SMR Oct-2026 Release 1 allows local attackers to potentially execute arbitrary code with system privilege."}], "references": [{"url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=10"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "baseScore": 8.9, "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H", "baseSeverity": "HIGH"}}], "providerMetadata": {"orgId": "3af57064-a867-422c-b2ad-40307b65c458", "shortName": "SamsungMobile", "dateUpdated": "2026-10-12T04:57:36.033Z"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-416", "lang": "en", "description": "CWE-416 Use After Free"}]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-12T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-21120"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-13T03:55:29.767Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-21120", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-12T14:00:37.116698Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-12T14:00:47.298Z"}}], "cna": {"metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "baseScore": 8.9, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH"}}], "affected": [{"vendor": "Samsung Mobile", "product": "Samsung Mobile Devices", "versions": [{"status": "unaffected", "version": "SMR Oct-2026 Release in Android 14, 15, 16, 17", "lessThan": "*", "versionType": "semver"}], "defaultStatus": "affected"}], "references": [{"url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=10"}], "descriptions": [{"lang": "en", "value": "Use after free in WSM service prior to SMR Oct-2026 Release 1 allows local attackers to potentially execute arbitrary code with system privilege."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-416 Use after free"}]}], "providerMetadata": {"orgId": "3af57064-a867-422c-b2ad-40307b65c458", "shortName": "SamsungMobile", "dateUpdated": "2026-10-12T04:57:36.033Z"}}}, "cveMetadata": {"cveId": "CVE-2026-21120", "state": "PUBLISHED", "dateUpdated": "2026-10-12T14:00:51.252Z", "dateReserved": "2025-12-11T01:33:35.832Z", "assignerOrgId": "3af57064-a867-422c-b2ad-40307b65c458", "datePublished": "2026-10-12T04:57:36.033Z", "assignerShortName": "SamsungMobile"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "affected", "product": "Samsung Mobile Devices", "vendor": "Samsung Mobile", "versions": [{"lessThan": "*", "status": "unaffected", "version": "SMR Oct-2026 Release in Android 14, 15, 16, 17", "versionType": "semver"}]}], "source": "mobile.security@samsung.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Use after free in WSM service prior to SMR Oct-2026 Release 1 allows local attackers to potentially execute arbitrary code with system privilege."}], "id": "CVE-2026-21120", "lastModified": "2026-10-14T20:13:37.910", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.9, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "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": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/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": "mobile.security@samsung.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-21120", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-12T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-10-12T05:17:00.520", "references": [{"source": "mobile.security@samsung.com", "url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=10"}], "sourceIdentifier": "mobile.security@samsung.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[SMR Oct-2026 Release in Android 14, 15, 16, 17,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Samsung Mobile Devices", "source": "cna", "vendor": "Samsung Mobile"}, "product": "samsung_mobile_devices", "vendor": "samsung_mobile"}], "created": "2026-10-12T06:30:06.706862+00:00", "title": "Use-After-Free in Samsung WSM Service Enables Local Code Execution", "updated": "2026-10-12T07:00:04.307507+00:00", "vendors": ["samsung_mobile", "samsung_mobile$PRODUCT$samsung_mobile_devices"], "weaknesses": ["CWE-416"]}