CVE-2026-20990

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"availabilityImpact": "NONE", "baseScore": 8.1, "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:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "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": 8.4, "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": "LOW", "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:L/UI:N/VC:H/VI:H/VA:L/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": "LOW", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "mobile.security@samsung.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-20990", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-03-16T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-03-16T14:18:09.750", "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-Other"}], "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": "2026-03-20T16:06:05.554695+00:00", "value": {"mitigation_remediation": ["Apply the Samsung March\u202f2026 security update (SMR\u00a0Mar\u20112026 Release\u00a01) or any later update that addresses the Secure Folder export issue.", "If a device cannot be updated, limit the use of Secure Folder until a patch is available and ensure that no installed application exports components that could be invoked externally.", "Monitor device logs for unexpected Secure Folder activity and disable or remove unnecessary components if possible."], "summary": {"action": "Apply Patch", "impact": "Privilege Escalation"}, "threat_synthesis": {"affected_systems": "The vulnerability impacts Samsung mobile devices running Android\u00a014.0, 15.0 or 16.0 that include a Secure Folder implementation prior to the SMR\u00a0Mar\u20112026 Release\u00a01 patch. All builds listed in the provided CPE inventory up through that release are susceptible; newer builds containing the March\u00a02026 update are not affected.", "description_and_impact": "Improper export of Android application components in Samsung Secure Folder before the March\u00a02026 security update allows a local attacker to launch arbitrary activities with Secure Folder privileges. The defect arises from components marked exportable that can be invoked from outside the private storage area, granting the attacker the ability to execute code with elevated rights. This could enable unauthorized access to, modification of, or exfiltration of data protected inside Secure Folder and could trigger actions that normally require the user\u2019s authentication.", "risk_and_exploitability": "A CVSS score of 8.4 denotes high severity, while the EPSS probability is below 1\u202f%, implying low current exploitation likelihood. Exploitation requires local device or physical access; the attacker can trigger the exported component to run code in the Secure Folder context, potentially compromising data or performing unauthorized actions. No publicly available exploits are documented and the flaw is not recorded in the known exploited vulnerabilities catalogue."}}}}, "created": "2026-03-17T09:55:17.537277+00:00", "title": "Improper Export of Secure Folder Components Allows Local Privilege Escalation", "updated": "2026-03-23T14:00:32.111511+00:00", "vendors": ["samsung_mobile", "samsung_mobile$PRODUCT$samsung_mobile_devices"]}