CVE-2026-43195 and is rated Medium severity with a CVSS score of 5.5. 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: May 9, 2026
CBL-Mariner Releases
Vendor-listed releases
6.6.137.1-2
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-2026-43195?
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: validate user queue size constraints
Add validation to ensure user queue sizes meet hardware requirements: - Size must be a power of two for efficient ring buffer wrapping - Size must be at least AMDGPU_GPU_PAGE_SIZE to prevent undersized allocations
This prevents invalid configurations that could lead to GPU faults or unexpected behavior.