CVE-2026-6426
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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Exploitation outlook
- Low exploitation risk0.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all EPSS-scored CVEs.
Advisory coverage (2)
- medium[NEW] [UNPATCHED] [medium] QEMU: Vulnerability allows Denial of Servicecert-bund · 2026-08-11
- mediumCVE-2026-6426: A type mismatch vulnerability was found in QEMU's vhost inflight migration VMState handling. Th…nvd · 2026-08-10
External references
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[](https://www.csirts.com/cve/CVE-2026-6426)