CVE-2026-20991

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"integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.7, "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": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/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": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "mobile.security@samsung.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-20991", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-16T13:10:20.309762Z", "version": "2.0.3"}}]}, "published": "2026-03-16T14:18:09.877", "references": [{"source": "mobile.security@samsung.com", "tags": ["Vendor Advisory"], "url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=03"}], "sourceIdentifier": "mobile.security@samsung.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "SMR Mar-2026 Release in Android 14, 15, 16"}}], "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"}], "analysis": {"en": {"generated_at": "2026-03-20T16:05:52.687588+00:00", "value": {"mitigation_remediation": ["Apply the latest Samsung firmware update that includes the ThemeManager patch (SMR\u202fMar\u20112026\u202fRelease\u202f1 or newer).", "Verify that the device runs a firmware version post\u2011Mar\u202f2026\u202fRelease\u202f1; if it remains on an older release, upgrade to a newer SMR when available.", "Contact Samsung support to confirm whether an incremental patch or advisory applies to the specific device model."], "summary": {"action": "Apply Patch", "impact": "Unauthorized Content Reuse"}, "threat_synthesis": {"affected_systems": "The issue applies to Samsung Mobile Devices running Android 14, 15, or 16 that have any SMR release listed in the provided CPEs and are prior to the SMR\u00a0Mar\u20112026\u00a0Release\u202f1 update. Because the exact version range is not specified beyond the SMR release dates, all devices within the documented Android releases and SMR periods should be considered at risk until a patch is applied.", "description_and_impact": "Improper privilege management in Samsung\u2019s ThemeManager before the SMR\u00a0Mar\u20112026\u00a0Release\u202f1 allows a local privileged attacker to reuse trial contents that should be restricted. The flaw enables an attacker with existing local privileges to bypass licensing or trial restrictions and access protected content without permission. This vulnerability is an incorrect permission assignment issue affecting the handling of trial content, leading to unauthorized use of licensed material.", "risk_and_exploitability": "The vulnerability requires that the attacker already have local privileges on the device, so it does not provide system\u2011wide compromise. The exploitability is therefore moderate, but the EPSS score is reported below 1\u202f%, indicating a low likelihood of exploitation. The attack would involve invoking ThemeManager functions to replicate or re\u2011enable trial content. As the flaw is not listed in the CISA KEV catalog, no widespread active exploitation has been reported, yet the risk of unauthorized content consumption remains. The attack vector is inferred from the description; explicit details are not supplied in the original data."}}}}, "created": "2026-03-17T09:55:16.671055+00:00", "updated": "2026-03-23T14:00:30.854887+00:00", "vendors": ["samsung_mobile", "samsung_mobile$PRODUCT$samsung_mobile_devices"]}