CVE-2026-21104

{"id": "CVE-2026-21104", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-21104", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-09-10T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 0.8}], "cvssMetricV40": [{"type": "Secondary", "source": "mobile.security@samsung.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.1, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:H/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "mobile.security@samsung.com", "affectedData": [{"vendor": "Samsung Mobile", "product": "Samsung Mobile Devices", "versions": [{"status": "unaffected", "version": "SMR Sep-2026 Release in hwvault ta", "lessThan": "*", "versionType": "semver"}], "defaultStatus": "affected"}]}], "published": "2026-09-09T05:17:22.723", "references": [{"url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=09", "tags": ["Vendor Advisory"], "source": "mobile.security@samsung.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-122"}]}], "descriptions": [{"lang": "en", "value": "Heap-based buffer overflow in KnoxVault trustlet prior to SMR Sep-2026 Release 1 allows local privileged attackers to execute arbitrary code."}], "lastModified": "2026-09-11T04:17:39.597", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:samsung:android:15.0:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "95DE4E96-2F23-47E5-9DFC-44EC409F37E8"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-apr-2025-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AB3F31FA-359F-4CB6-9078-CD2093D4C43A"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-apr-2026-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EDE4238F-0079-4DCB-BD66-0885C59136E1"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-aug-2025-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4207B265-009B-4FF8-85C5-01EBDB7701FF"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-aug-2026-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "61C145A8-7962-4BE1-804B-186D75DBE9C5"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-dec-2025-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AAFE22F0-4B77-4034-8271-34A131B14D85"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-feb-2025-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7A5F4E59-BD59-41C8-82B2-A3C52E7125AA"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-feb-2026-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B1E0CF77-4D2C-4BA6-88ED-887DD1984763"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-jan-2025-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F878069B-37C9-4636-8C31-526B610A0AFA"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-jan-2026-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "03A54EA0-3B86-4236-AA3C-840ACCD174A8"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-jul-2025-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B9BADD79-26FC-4498-AFEC-C79AF6B96924"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-jul-2026-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E82F7EC8-332B-4EB8-9461-AFBE293D38AB"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-jun-2025-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3A695EEE-B9DE-4448-BC51-AF5AC592AA59"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-jun-2026-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "05F14EB8-2F3E-4CA5-880D-566A872FEA19"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-mar-2025-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FC6E2318-BD4E-4540-82C3-0D461C691119"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-mar-2026-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1E516E0C-5A39-4657-93F7-16CCA42FA0E8"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-may-2025-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DDFC99BC-87AC-43AC-B815-36B7960C39D1"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-may-2026-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "865A0AD9-2275-4E90-ACE4-0514559E4E05"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-nov-2025-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F9B1BCF7-069A-42BC-A654-5C894C92CF1A"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-oct-2025-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "65F036A0-874D-4607-833E-167753748DEB"}, {"criteria": "cpe:2.3:o:samsung:android:15.0:smr-sep-2025-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "22E4BD84-802F-46CC-A86F-B6256F7915E0"}, {"criteria": "cpe:2.3:o:samsung:android:16.0:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3FD6766A-EC2B-4CA2-9A8E-2BA5C9E9ECF9"}, {"criteria": "cpe:2.3:o:samsung:android:16.0:smr-apr-2026-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8F2CAFE7-A314-4984-A4D0-A7FE3BEDAE91"}, {"criteria": "cpe:2.3:o:samsung:android:16.0:smr-aug-2025-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C86A3033-9DD1-47F9-B95D-10F82A31D335"}, {"criteria": "cpe:2.3:o:samsung:android:16.0:smr-aug-2026-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CE65B12A-67C3-474E-9CB1-9C936F578858"}, {"criteria": "cpe:2.3:o:samsung:android:16.0:smr-dec-2025-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "98C26CF8-228F-4791-B5A3-B65DF709F402"}, {"criteria": "cpe:2.3:o:samsung:android:16.0:smr-feb-2026-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2BB01FDF-5022-4EAE-9779-F09771BEC443"}, {"criteria": "cpe:2.3:o:samsung:android:16.0:smr-jan-2026-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E2CCDCC2-A128-4BB4-91CD-E534E06BB24C"}, {"criteria": "cpe:2.3:o:samsung:android:16.0:smr-jul-2026-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B21274D4-E39A-48C9-97F4-D4DD8118DC30"}, {"criteria": "cpe:2.3:o:samsung:android:16.0:smr-jun-2026-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D4671B54-8250-47E2-8417-471D745A00AA"}, {"criteria": "cpe:2.3:o:samsung:android:16.0:smr-mar-2026-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C1BA43B7-5D88-4F5E-B90C-5AE8AC422214"}, {"criteria": "cpe:2.3:o:samsung:android:16.0:smr-may-2026-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E7017ACC-1B08-4C12-8FC2-8A64AACB1CCA"}, {"criteria": "cpe:2.3:o:samsung:android:16.0:smr-nov-2025-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0C527C12-5480-4604-A480-1E540095EB5D"}, {"criteria": "cpe:2.3:o:samsung:android:16.0:smr-oct-2025-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B3C64BA1-AF0F-4E65-97BE-3FD1958FFC79"}, {"criteria": "cpe:2.3:o:samsung:android:16.0:smr-sep-2025-r1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "79C71CA6-508E-4A19-9014-47FA1BD5A83C"}, {"criteria": "cpe:2.3:o:samsung:android:17.0:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C4831C4F-364F-4AA6-AA9C-61657305A186"}], "operator": "OR"}]}], "sourceIdentifier": "mobile.security@samsung.com"}