CVE-2026-42617: n/a
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.
CVSS v3.1
Score 7.1high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-42617 describes a heap buffer overflow in the ntfs_ir_to_ib() function of NTFS-3G before version 2026.7.7. The vulnerability occurs when processing a maliciously crafted NTFS image that extends a directory, for example by creating a file. This overflow can corrupt heap memory in the SUID-root ntfs-3g binary, potentially leading to privilege escalation or other memory corruption impacts.
Potential Impact
Heap memory corruption in the SUID-root ntfs-3g binary may allow an attacker to execute arbitrary code with root privileges or cause denial of service. The vulnerability requires an attacker to supply a crafted NTFS image and perform directory extension operations.
Mitigation Recommendations
A fix is available in NTFS-3G version 2026.7.7. Users should upgrade to version 2026.7.7 or later to remediate this vulnerability. No vendor advisory content was provided, so verify patch availability from the official NTFS-3G sources.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-04-29T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6ac654e62cdf04f65656410f
Added to database: 10/07/2026, 14:19:18 UTC
Last enriched: 10/07/2026, 14:33:32 UTC
Last updated: 10/07/2026, 20:48:59 UTC
Views: 14
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