CVE-2026-46569: n/a
Description
A heap buffer overflow vulnerability exists in NTFS-3G versions prior to 2026.7.7 in the ntfs_ib_copy_tail() function within libntfs-3g/index.c. This flaw can be triggered by extending a directory, such as creating a file, using a crafted malicious NTFS image. The vulnerability affects the SUID-root ntfs-3g binary and allows heap memory corruption.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-46569 describes a heap buffer overflow in the ntfs_ib_copy_tail() function of NTFS-3G before version 2026.7.7. The vulnerability occurs when a malicious NTFS image is used to extend a directory, which corrupts heap memory in the SUID-root ntfs-3g binary. This could potentially lead to privilege escalation or other memory corruption consequences. The issue is located in libntfs-3g/index.c.
Potential Impact
Heap memory corruption in a SUID-root binary can lead to privilege escalation or denial of service on affected systems. However, no known exploits are reported in the wild at this time.
Mitigation Recommendations
Upgrade NTFS-3G to version 2026.7.7 or later where this vulnerability is fixed. Patch status is confirmed by the version boundary provided. No additional vendor advisory is available to indicate alternative mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-05-15T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6ac654e62cdf04f656564112
Added to database: 10/07/2026, 14:19:18 UTC
Last enriched: 10/07/2026, 14:33:19 UTC
Last updated: 10/07/2026, 14:33:19 UTC
Views: 2
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