[NEW] [UNPATCHED] [medium] QEMU: Vulnerability allows Denial of Service

A remote, authenticated attacker can exploit a vulnerability in QEMU to cause memory corruption or a Denial-of-Service condition.

CSIRTS triage

What: An authenticated remote attacker can cause memory corruption or denial of service in QEMU.
Who is affected: QEMU deployments with remote authenticated access are affected.
Urgency: Medium priority; unpatched status and memory corruption require prompt attention despite requiring authentication.
Action: Apply patches for CVE-2026-6426 or restrict remote authenticated access to QEMU.

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

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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-2026-64260.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all EPSS-scored CVEs.

CVE	CSIRTS overview	External
CVE-2026-6426	coverage & exploitation status	NVD · CVE.org

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