{"id":"CVE-2026-42616","title":"In NTFS-3G before 2026.7.7, a heap buffer overflow exists in cat() in ntfscat.c that allows an attacker to corrupt heap memory in the ntfscat binary by crafting a malicious NTFS image","summary":"In NTFS-3G before 2026.7.7, a heap buffer overflow exists in cat() in ntfscat.c that allows an attacker to corrupt heap memory in the ntfscat binary by crafting a malicious NTFS image. The overflow is triggered by reading a file.","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-787"],"vendor":"tuxera","product":"ntfs-3g","affected":["ntfs-3g < 2026.7.7"],"patched":["ntfs-3g 2026.7.7"],"published":"2026-10-07","updated":"2026-10-08","sourceUpdated":"2026-10-08T19:09:18.877","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-42616","references":[{"url":"https://github.com/tuxera/ntfs-3g/releases#release-2026.7.7","label":"cve@mitre.org"},{"url":"https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-p6mp-gp2j-7358","label":"cve@mitre.org"}],"tags":["nvd","cve.org"],"epss":0.00166,"epssPercentile":0.05789,"ingestedAt":"2026-10-07T14:33:21.952Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-19T17:04:50.398836Z"},"slug":"CVE-2026-42616","body":"## Overview\n\nIn NTFS-3G before 2026.7.7, a heap buffer overflow exists in cat() in ntfscat.c that allows an attacker to corrupt heap memory in the ntfscat binary by crafting a malicious NTFS image. The overflow is triggered by reading a file.\n\n## Affected\n\n- `ntfs-3g < 2026.7.7`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `ntfs-3g 2026.7.7`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":218268,"id":"CVE-2026-42616","ts":1791490025104,"field":"cvss","old":null,"new":"7.8"},{"seq":218267,"id":"CVE-2026-42616","ts":1791490025104,"field":"severity","old":"none","new":"high"}]}