Published Aug 26, 2026Sources checked Oct 28, 2026
7.8HIGHCVSS out of 10
What this means
Review the available evidence
CVE-2026-80540 and is rated High severity with a CVSS score of 7.8. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
What to do next
Remediation and response
Microsoft Security Response Center guidance
Vendor revision: Oct 2, 2026
Release Notes
Vendor-listed releases
6.6.157.1-1
CISA KEVNot listedBased on the latest collected catalog
EPSS0.1%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview
What is CVE-2026-80540?
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: Fix UVD decode image min size calculation
This needs to use pitch instead of width. Also reject pitch over 4096 to avoid overflow.
(cherry picked from commit b41c8cb12e202b220353332ab87dc01a11f69304)