SB20260912166 - Improper Validation of Specified Quantity in Input in Linux kernel ntfs
Published: September 12, 2026
Security Bulletin ID
SB20260912166
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Validation of Specified Quantity in Input (CVE-ID: CVE-2026-89610)
CWE-ID: CWE-1284 - Improper Validation of Specified Quantity in Input
CVSSv4: 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]
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.
Remediation
Install update from vendor's website.