CVE-2026-46314: drm/v3d: Reject empty multisync extension to prevent infinite loop

mediumCVSS 5.5CVE-2026-46314

CSIRTS triage

Other

What: The vulnerability involves an infinite loop caused by rejecting empty multisync extensions.
Who is affected: Deployments using the affected drm/v3d component.
Urgency: Remediation is medium urgency due to the potential for denial of service.
Action: Apply the relevant patches to prevent the infinite loop.

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

Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: medium — CVSS 5.5
Published: 2026-06-09
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-46314

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-2026-463140.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-46314	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

high[UPDATE] [high] Linux Kernel: Multiple vulnerabilities allow denial of servicecert-bund

Recent advisories for drm/v3d

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.

mediumCVE-2026-53139: drm/v3d: Skip CSD when it has zeroed workgroupsmsrc · 2026-06-09