{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-21020", "assignerOrgId": "3af57064-a867-422c-b2ad-40307b65c458", "state": "PUBLISHED", "assignerShortName": "SamsungMobile", "dateReserved": "2024-11-06T02:30:14.881Z", "datePublished": "2025-08-06T04:23:36.742Z", "dateUpdated": "2026-02-26T17:49:56.856Z"}, "containers": {"cna": {"problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-787 Out-of-bounds Write"}]}], "affected": [{"vendor": "Samsung Mobile", "product": "Blockchain Keystore", "versions": [{"status": "unaffected", "version": "1.3.17.2"}], "defaultStatus": "affected"}], "descriptions": [{"lang": "en", "value": "Out-of-bounds write in creating bitmap images in Blockchain Keystore prior to version 1.3.17.2 allows local privileged attackers to write out-of-bounds memory."}], "references": [{"url": "https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=08"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseSeverity": "MEDIUM", "baseScore": 5.7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N"}}], "providerMetadata": {"orgId": "3af57064-a867-422c-b2ad-40307b65c458", "shortName": "SamsungMobile", "dateUpdated": "2025-08-06T04:23:36.742Z"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-21020", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-08-13T15:03:39.585759Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-26T17:49:56.856Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-21020", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-08-13T15:03:39.585759Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-08-06T13:37:13.518Z"}}], "cna": {"metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "Samsung Mobile", "product": "Blockchain Keystore", "versions": [{"status": "unaffected", "version": "1.3.17.2"}], "defaultStatus": "affected"}], "references": [{"url": "https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=08"}], "descriptions": [{"lang": "en", "value": "Out-of-bounds write in creating bitmap images in Blockchain Keystore prior to version 1.3.17.2 allows local privileged attackers to write out-of-bounds memory."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-787 Out-of-bounds Write"}]}], "providerMetadata": {"orgId": "3af57064-a867-422c-b2ad-40307b65c458", "shortName": "SamsungMobile", "dateUpdated": "2025-08-06T04:23:36.742Z"}}}, "cveMetadata": {"cveId": "CVE-2025-21020", "state": "PUBLISHED", "dateUpdated": "2026-02-26T17:49:56.856Z", "dateReserved": "2024-11-06T02:30:14.881Z", "assignerOrgId": "3af57064-a867-422c-b2ad-40307b65c458", "datePublished": "2025-08-06T04:23:36.742Z", "assignerShortName": "SamsungMobile"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:samsung:blockchain_keystore:*:*:*:*:*:*:*:*", "matchCriteriaId": "D97199FA-9E57-4D37-AA98-466183EAA964", "versionEndExcluding": "1.3.17.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Out-of-bounds write in creating bitmap images in Blockchain Keystore prior to version 1.3.17.2 allows local privileged attackers to write out-of-bounds memory."}, {"lang": "es", "value": "La escritura fuera de los l\u00edmites en la creaci\u00f3n de im\u00e1genes de mapa de bits en Blockchain Keystore anterior a la versi\u00f3n 1.3.17.2 permite que atacantes privilegiados locales escriban en la memoria fuera de los l\u00edmites."}], "id": "CVE-2025-21020", "lastModified": "2025-08-15T15:59:12.020", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 0.5, "impactScore": 5.2, "source": "mobile.security@samsung.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-08-06T05:15:34.750", "references": [{"source": "mobile.security@samsung.com", "tags": ["Vendor Advisory"], "url": "https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=08"}], "sourceIdentifier": "mobile.security@samsung.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{"created": "2025-08-06T08:12:48.325277+00:00", "updated": "2025-08-06T08:12:48.325332+00:00", "vendors": ["samsung", "samsung$PRODUCT$blockchain_keystore"]}