CVE-2026-56135: n/a
Description
A heap-based buffer overflow vulnerability exists in NTFS-3G through version 2026.2.25 in the build_inherited_id() function. This flaw can be triggered by creating a file in a specially crafted directory within a malicious NTFS image, potentially allowing heap memory corruption in the SUID-root ntfs-3g binary.
CVSS v3.1
Score 7.4high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-56135 describes a heap-based buffer overflow in the build_inherited_id() function of libntfs-3g/security.c in NTFS-3G versions prior to 2026.2.25. An attacker can exploit this by crafting a malicious NTFS image and creating a file in a crafted directory, leading to heap memory corruption in the SUID-root ntfs-3g binary. The vulnerability has a CVSS 3.1 base score of 7.4, indicating high severity with impacts on confidentiality, integrity, and availability. No official patch or remediation level is currently documented.
Potential Impact
Successful exploitation could allow an attacker with local access to corrupt heap memory in the SUID-root ntfs-3g binary, potentially leading to privilege escalation or arbitrary code execution with root privileges. The vulnerability affects confidentiality, integrity, and availability of the system. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid mounting untrusted NTFS images or using NTFS-3G in environments where untrusted users can supply NTFS images. Monitor vendor channels for updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-06-19T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6a8ca814acd9273b4915057c
Added to database: 08/24/2026, 20:22:44 UTC
Last enriched: 09/10/2026, 09:08:01 UTC
Last updated: 10/08/2026, 18:48:46 UTC
Views: 68
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