SB20261023165 - Out-of-bounds read in Linux kernel drm vmwgfx driver

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Main Vulnerability Database SB20261023165

SB20261023165 - Out-of-bounds read in Linux kernel drm vmwgfx driver

Published: October 23, 2026

Security Bulletin ID SB20261023165
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2026-99002)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to trigger out-of-bounds reads that may disclose sensitive information or cause a denial of service.

The vulnerability exists due to an out-of-bounds read in the Linux kernel vmwgfx cursor snooping functionality when copying surface data using insufficiently validated userspace-supplied pitch and box dimensions. A local user can supply crafted surface copy parameters to cause reads beyond the source buffer or its mapped region, potentially disclosing sensitive information or causing a denial of service.


Remediation

Install update from vendor's website.

References