CVE-2025-21020

{"id": "CVE-2025-21020", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"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"}, "impactScore": 5.2, "exploitabilityScore": 0.5}, {"type": "Primary", "source": "[email protected]", "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}]}, "published": "2025-08-06T05:15:34.750", "references": [{"url": "https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=08", "tags": ["Vendor Advisory"], "source": "[email protected]"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-787"}]}], "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."}], "lastModified": "2025-08-15T15:59:12.020", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:samsung:blockchain_keystore:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D97199FA-9E57-4D37-AA98-466183EAA964", "versionEndExcluding": "1.3.17.2"}], "operator": "OR"}]}], "sourceIdentifier": "[email protected]"}