CVE-2026-20981

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{"criteria": "cpe:2.3:o:samsung:android:16.0:smr-dec-2025-r1:*:*:*:*:*:*", "matchCriteriaId": "98C26CF8-228F-4791-B5A3-B65DF709F402", "vulnerable": true}, {"criteria": "cpe:2.3:o:samsung:android:16.0:smr-jan-2026-r1:*:*:*:*:*:*", "matchCriteriaId": "E2CCDCC2-A128-4BB4-91CD-E534E06BB24C", "vulnerable": true}, {"criteria": "cpe:2.3:o:samsung:android:16.0:smr-nov-2025-r1:*:*:*:*:*:*", "matchCriteriaId": "0C527C12-5480-4604-A480-1E540095EB5D", "vulnerable": true}, {"criteria": "cpe:2.3:o:samsung:android:16.0:smr-oct-2025-r1:*:*:*:*:*:*", "matchCriteriaId": "B3C64BA1-AF0F-4E65-97BE-3FD1958FFC79", "vulnerable": true}, {"criteria": "cpe:2.3:o:samsung:android:16.0:smr-sep-2025-r1:*:*:*:*:*:*", "matchCriteriaId": "79C71CA6-508E-4A19-9014-47FA1BD5A83C", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper input validation in FacAtFunction prior to SMR Feb-2026 Release 1 allows privileged physical attacker to execute arbitrary command with system privilege."}, {"lang": "es", "value": "Validaci\u00f3n de entrada incorrecta en FacAtFunction anterior a SMR Feb-2026 Release 1 permite a un atacante f\u00edsico privilegiado ejecutar comando arbitrario con privilegio de sistema."}], "id": "CVE-2026-20981", "lastModified": "2026-06-17T10:18:09.580", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "PHYSICAL", "availabilityImpact": "HIGH", "baseScore": 6.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.7, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "PHYSICAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.4, "baseSeverity": "MEDIUM", "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": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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-2026-20981", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-02-04T16:56:22.515783Z", "version": "2.0.3"}}]}, "published": "2026-02-04T07:16:00.113", "references": [{"source": "mobile.security@samsung.com", "tags": ["Vendor Advisory"], "url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=02"}], "sourceIdentifier": "mobile.security@samsung.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-17T23:55:53.812822+00:00", "value": {"mitigation_remediation": ["Install the Samsung security update for SMR Feb\u20112026 Release\u202f1 that addresses this vulnerability.", "Restrict physical access to affected devices until the patch is applied.", "Enable device lock and limit privileged operations to prevent unauthorized command execution."], "summary": {"action": "Apply Patch", "impact": "Command Execution"}, "threat_synthesis": {"affected_systems": "Samsung Mobile Devices running Android\u202f14.0,\u202f15.0, and\u202f16.0, including the seasonal releases listed in the CPE data from SMR Apr\u20112022 through Sep\u20112026.", "description_and_impact": "The vulnerability originates from improper input validation in the FacAtFunction component before SMR Feb\u20112026 Release\u202f1. It permits a privileged physical attacker to inject and run arbitrary system commands on the device, effectively gaining full system control.", "risk_and_exploitability": "The CVSS score of 5.4 indicates a moderate severity. The EPSS score of less than 1% suggests a low likelihood of exploitation in the wild, and the vulnerability is not listed in the CISA KEV catalog. However, the attack requires a physical attacker with device\u2011level privileges; if such conditions exist, exploitation could lead to complete system compromise. The vulnerability is exploitable via local input injection into the FacAtFunction interface."}}}}, "created": "2026-02-04T21:18:08.603821+00:00", "title": "Physical Attackers Can Execute Arbitrary Commands via Improper Input Validation in FacAtFunction on Samsung Devices", "updated": "2026-04-18T00:00:09.484571+00:00", "vendors": ["samsung", "samsung$PRODUCT$mobile_devices"], "weaknesses": ["CWE-78", "CWE-20"]}