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CVE-2026-68255: drm/virtio: bound EDID block reads to the response buffer

mediumCVSS 5.5CVE-2026-68255

CSIRTS triage

vendor: Linuxproduct: Linux KernelMemory corruption
What
The virtio DRM driver does not properly bound EDID block reads to the response buffer, causing out-of-bounds access.
Who is affected
Linux systems using virtio GPU devices, particularly in virtualized or cloud environments.
Urgency
Medium priority; out-of-bounds reads may leak sensitive kernel memory or cause denial of service.
Action
Apply Linux kernel patch for CVE-2026-68255 when available from your distribution.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
medium — CVSS 5.5
Published
2026-08-11
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68255

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-68255coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for drm/virtio

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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