High severity · published Oct 7, 2026
CVE-2026-42616
In NTFS-3G before 2026.7.7, a heap buffer overflow exists in cat() in ntfscat.c that allows an attacker to corrupt heap memory in the ntfscat binary by crafting a malicious NTFS…
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
In NTFS-3G before 2026.7.7, a heap buffer overflow exists in cat() in ntfscat.c that allows an attacker to corrupt heap memory in the ntfscat binary by crafting a malicious NTFS image. The overflow is triggered by reading a file.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% 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
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-42616
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-42616
github.com
https://github.com/tuxera/ntfs-3g/releases#release-2026.7.7
github.com
https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-p6mp-gp2j-7358
More from Ntfs-3g
8.4
CVE-2026-40706
In NTFS-3G 2022.10.3 before 2026.2.25, a heap buffer overflow exists in ntfs_build_permissions_posix() in acls.c that allows an attacker to corrupt heap memory in the SUID-root…
8.1
CVE-2026-46570
In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_index_walk_down() in libntfs-3g/index.c that allows an attacker to corrupt heap memory in the SUID-root ntfs-3g…
7.8
CVE-2022-40284
A buffer overflow was discovered in NTFS-3G before 2022.10.3
7.8
CVE-2022-30789
A crafted NTFS image can cause a heap-based buffer overflow in ntfs_check_log_client_array in NTFS-3G through 2021.8.22
7.8
CVE-2022-30788
A crafted NTFS image can cause a heap-based buffer overflow in ntfs_mft_rec_alloc in NTFS-3G through 2021.8.22