Improper Validation of Specified Quantity in Input in Linux kernel - CVE-2026-89610
Published: September 12, 2026
Vulnerability identifier: #VU149188
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-89610
CWE-ID: CWE-1284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to escalate privileges.
The vulnerability exists due to improper validation of run length in the NTFS mapping pairs decoder when processing a malformed NTFS image containing a crafted mapping pairs array. A remote attacker can provide a malformed NTFS image with a crafted mapping pairs array to escalate privileges.
Affected software
Linux kernel
How to mitigate CVE-2026-89610
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3