Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-42616

CVE-2026-42616HIGH

n/a n/a — 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 ntf…

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   N   R  U  H  H  H    7.8   .0016    4.8     —

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Apr 29  Reserved by mitre
  Oct 7   Published (CNA: mitre)
  Oct 8   ENRICHED — CVE-2026-42616. Received CVSS 7.8 and CPE data from NVD.

CWE-787 · CNA: mitre · CVSS v3.1 · 2 references · NVD status: Analyzed

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
April 29, 2026	Reserved	Reserved by mitre
October 7, 2026	Published	Published (CNA: mitre)
October 8, 2026	ENRICHED	ENRICHED — CVE-2026-42616. Received CVSS 7.8 and CPE data from NVD.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-787

References (2)

https://github.com/tuxera/ntfs-3g/releases#release-2026.7.7 [Release Notes]
https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-p6mp-gp2j-7358 [Patch, Vendor Advisory]

Authoritative record: CVE-2026-42616 at cve.org

Weaknesses: CWE-787

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-42616 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.