CVE-2026-68204: media: vivid: check for vb2_is_busy() when toggling caps

highCVSS 7.1CVE-2026-68204

CSIRTS triage

vendor: Linux product: Linux kernel Denial of service

What: The vivid media driver fails to check vb2_is_busy() when toggling capability flags, enabling denial of service.
Who is affected: Linux systems with the vivid test video device driver loaded.
Urgency: High priority; CVSS 7.1 and denial of service capability warrant prompt patching.
Action: Update to a patched Linux kernel version containing the fix for CVE-2026-68204.

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: high — CVSS 7.1
Published: 2026-08-11
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68204

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.

Low exploitation riskCVE-2026-682040.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-68204	coverage & exploitation status	NVD · CVE.org

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