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Medium severity · published Aug 24, 2026
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…
4.7
CVSS
0.1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NT
Ntfs-3g · Tuxera
before 2026.7.7 · source: NVD
Affected product
NT
Ntfs-3g
Tuxera
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-56136
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-56136
Patch
https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-r66g-c39x-cw95
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