HIGH 7.1 Microsoft
CVE-2026-56136
In NTFS-3G through 2026.2.25, an out-of-bounds read exists in ntfs_ir_nill() in libntfs-3g/index.c that allows an attacker to read possibly confidential information in an ntfs-3g process by crafting a malicious NTFS image. This read operation is triggered by creation of a file with a crafted name.
Microsoft Security Update 2026-Aug: In NTFS-3G through 2026.2.25, an out-of-bounds read exists in ntfs_ir_nill() in libntfs-3g/index.c that allows an attacker to read possibly confidential information in an ntfs-3g process by crafting a malicious NTFS image. This read operation is triggered by creation of a file with a crafted name.
Affected Products
- azl3 ntfs-3g 2022.10.3-3 on Azure Linux 3.0
- azl3 ntfs-3g 2022.10.3-4 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56136
- https://nvd.nist.gov/vuln/detail/CVE-2026-56136
This high severity vulnerability with a CVSS score of 7.1 was published on 2026-08-11 via Microsoft. Affected: azl3 ntfs-3g 2022.10.3-3 on Azure Linux 3.0, azl3 ntfs-3g 2022.10.3-4 on Azure Linux 3.0.
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