{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-10101", "assignerOrgId": "dbd8429d-f261-4b1e-94cc-ae3132817e2e", "state": "PUBLISHED", "assignerShortName": "NLOK", "dateReserved": "2025-09-08T10:10:40.173Z", "datePublished": "2025-12-01T15:32:31.678Z", "dateUpdated": "2026-06-12T22:34:05.090Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "dbd8429d-f261-4b1e-94cc-ae3132817e2e", "shortName": "GEN", "dateUpdated": "2026-06-12T22:34:05.090Z"}, "title": "Avast antivirus heap buffer OOB read when scanning a malformed Mach-O file", "datePublic": "2025-09-08T17:11:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-549", "descriptions": [{"lang": "en", "value": "CAPEC-549 Local Execution of Code"}]}], "affected": [{"vendor": "Gen Digital", "product": "Avast Antivirus", "platforms": ["Windows", "macOS", "Linux"], "versions": [{"status": "affected", "version": "0", "lessThan": "25090300", "versionType": "custom"}], "defaultStatus": "affected"}, {"vendor": "Gen Digital", "product": "AVG Antivirus", "platforms": ["Windows", "macOS", "Linux"], "versions": [{"status": "affected", "version": "0", "lessThan": "25090300", "versionType": "custom"}], "defaultStatus": "affected"}, {"vendor": "Gen Digital", "product": "Norton Antivirus", "platforms": ["Windows", "macOS", "Linux"], "versions": [{"status": "affected", "version": "0", "lessThan": "25090300", "versionType": "custom"}], "defaultStatus": "affected"}, {"vendor": "Gen Digital", "product": "Avast One", "platforms": ["Windows", "macOS", "Linux"], "versions": [{"status": "affected", "version": "0", "lessThan": "25090300", "versionType": "custom"}], "defaultStatus": "affected"}, {"vendor": "Gen Digital", "product": "Avast Business Antivirus", "platforms": ["Windows", "macOS", "Linux"], "versions": [{"status": "affected", "version": "0", "lessThan": "25090300", "versionType": "custom"}], "defaultStatus": "affected"}], "descriptions": [{"lang": "en", "value": "Heap buffer out-of-bounds read vulnerability in Avast Antivirus when scanning a malformed Mach-O file may allow Local Execution of Code or Denial-of-Service of the antivirus process.\n\nThis issue affects Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast One, and Avast Business Antivirus on Windows, macOS, and Linux for virus definition builds before VPS 25090300.\n\n\n\nThe affected scanning logic is delivered through a shared Gen Digital virus definition update stream. 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{"created": "2025-12-02T11:59:03.217198+00:00", "updated": "2025-12-02T11:59:03.217223+00:00", "vendors": ["apple", "apple$PRODUCT$macos", "avast", "avast$PRODUCT$antivirus"]}