{"id":"CVE-2026-42617","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-42617","generatedAt":"2026-10-28T03:31:06.568Z","title":"In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_ir_to_ib() in index.c that allows an attacker to corrupt heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image.","description":"In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_ir_to_ib() in index.c that allows an attacker to corrupt heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image. The overflow is triggered by extending a directory, e.g., by creating a file.","published":"2026-10-07T14:17:10.000Z","lastModified":"2026-10-08T19:09:13.000Z","status":"Analyzed","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.1,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"},"cwe":["CWE-122"],"affected":["tuxera/ntfs-3g"],"epss":{"score":0.00147,"percentile":0.03859,"date":"2026-10-26","history":[{"date":"2026-10-08","score":0.00126,"percentile":0.02033}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.15%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"scored","label":"Newly scored","at":"2026-10-07T22:30:11.000Z","detail":{"from":null,"score":"7.1","severity":"HIGH","fromSeverity":null},"summary":"Now scored CVSS 7.1 HIGH."},{"kind":"new","label":"New CVE","at":"2026-10-07T14:17:10.000Z","detail":{"score":null,"severity":null,"publishedAt":"2026-10-07T14:17:09.587Z"},"summary":"New CVE, high severity (CVSS 7.1)."}],"references":[{"url":"https://github.com/tuxera/ntfs-3g/releases#release-2026.7.7","tags":["Release Notes"],"source":"cve@mitre.org"},{"url":"https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-jv65-qqf7-f692","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-42617","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}