CVE-2026-21008

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{"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-mar-2026-r1:*:*:*:*:*:*", "matchCriteriaId": "C1BA43B7-5D88-4F5E-B90C-5AE8AC422214", "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": "Exposure of sensitive information in S Share prior to SMR Apr-2026 Release 1 allows adjacent attacker to access sensitive information."}, {"lang": "es", "value": "Exposici\u00f3n de informaci\u00f3n sensible en S Share antes de SMR Abr-2026 Versi\u00f3n 1 permite a un atacante adyacente acceder a informaci\u00f3n sensible."}], "id": "CVE-2026-21008", "lastModified": "2026-10-26T21:10:00.170", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "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": "ADJACENT", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.1, "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": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/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": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "mobile.security@samsung.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-21008", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-04-13T13:57:43.584386Z", "version": "2.0.3"}}]}, "published": "2026-04-13T06:16:05.360", "references": [{"source": "mobile.security@samsung.com", "tags": ["Vendor Advisory"], "url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=04"}], "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": "affected", "versions": {"scheme": "generic", "value": "[0,SMR Apr-2026 Release in Android 14, 15, 16]"}}], "original": {"product": "Samsung Mobile Devices", "source": "cna", "vendor": "Samsung Mobile"}, "product": "mobile_devices", "vendor": "samsung"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,SMR Apr-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": "2026-04-14T17:59:08.456148+00:00", "value": {"mitigation_remediation": ["Install the Samsung April\u202f2026 SMR Release\u202f1 update on affected devices", "If the update cannot be applied immediately, disable the S Share feature until the patch is available", "Verify that the device\u2019s operating system has been updated to a patched version via the system settings or the Samsung security update portal"], "summary": {"action": "Patch Now", "impact": "Sensitive Data Exposure"}, "threat_synthesis": {"affected_systems": "Samsung Mobile Devices that run Android\u202f14.0, Android\u202f15.0 or Android\u202f16.0, and have not yet received the April\u202f2026 SMR Release\u202f1 update. All models equipped with the S Share capability are impacted until the security patch is installed.", "description_and_impact": "The vulnerability arises within Samsung\u2019s S Share feature of the Android operating system, allowing private information to be unintentionally exposed before the April\u202f2026 SMR Release\u202f1 update. An attacker positioned near the device can access this data, potentially revealing personal or device\u2011specific details. This flaw involves insufficient controls over who may read the shared content, resulting in a breach of confidentiality while leaving integrity and availability unaffected.", "risk_and_exploitability": "The reported impact score of 5.1 denotes a moderate risk level. The probability of exploitation is low, with very few recent attacks observed. The vulnerability is not listed in CISA\u2019s known exploited vulnerabilities catalog, indicating that large\u2011scale exploitation has not yet occurred. The likely attack scenario requires physical or local proximity to the device, often involving a user\u2011initiated sharing action or nearby file access."}}}}, "created": "2026-04-13T12:37:04.778605+00:00", "title": "Sensitive Data Exposure in Samsung S\u202fShare Before April\u202f2026 Update", "updated": "2026-04-15T15:45:07.534212+00:00", "vendors": ["samsung", "samsung$PRODUCT$mobile_devices", "samsung_mobile", "samsung_mobile$PRODUCT$samsung_mobile_devices"], "weaknesses": ["CWE-200", "CWE-284"]}