[UPDATE] [medium] QEMU: Vulnerability allows denial of service
A local attacker can exploit a vulnerability in QEMU to cause a denial-of-service state and potentially execute arbitrary code on the host.
CSIRTS triage
- What
- A vulnerability allows a local attacker to cause a denial-of-service state and potentially execute arbitrary code on the host.
- Who is affected
- Deployments of QEMU are affected.
- Urgency
- Remediation is medium urgency as exploitation is possible but not currently active.
- Action
- Update to the latest version of QEMU.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1908
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-2026-489140.12% 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-2026-48914 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
Recent advisories for QEMU
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.
- highCVE-2026-53657: Lima launches Linux virtual machines, typically on macOS, for running containerd. Prior to 2.1…nvd · 2026-07-10
- medium[UPDATE] [medium] QEMU: Multiple vulnerabilities allow information disclosurecert-bund · 2026-07-09
- high[UPDATE] [high] QEMU and libvirt: Multiple vulnerabilitiescert-bund · 2026-07-09
- mediumCVE-2026-48914: Qemu-kvm: heap buffer overflow in virtio-blk scsi request handlingmsrc · 2026-06-09
- highCVE-2026-3195: Qemu-kvm: virtio-snd: heap buffer overflow in virtio_snd_pcm_in_cb (incomplete fix for cve-2024…msrc · 2026-06-09
- mediumCVE-2026-3196: Qemu-kvm: virtio-snd: integer overflow leading to unbounded memory allocationmsrc · 2026-06-09
More from CERT-Bund (BSI) Security Advisories
- medium[NEW] [medium] DENX U-Boot: Multiple vulnerabilities allow execution of arbitrary code and DoS2026-07-10
- medium[NEW] [medium] Samsung Android: Multiple vulnerabilities2026-07-10
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-10
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow unspecified attack2026-07-10
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-10