RHSA-2026:3077MediumCVSS 7.5

Red Hat Security Advisory: qemu-kvm security update

Published
February 23, 2026
Last Modified
August 26, 2026

🔗 CVE IDs covered (1)

CVE-2025-11234 →

📋 Description

CVE-2025-11234 — qemu-kvm: VNC WebSocket handshake use-after-free

🎯 Affected products103

  • Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-guest-agent-17:7.2.0-14.el9_2.24.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-guest-agent-17:7.2.0-14.el9_2.24.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-guest-agent-17:7.2.0-14.el9_2.24.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-guest-agent-17:7.2.0-14.el9_2.24.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-guest-agent-debuginfo-17:7.2.0-14.el9_2.24.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-guest-agent-debuginfo-17:7.2.0-14.el9_2.24.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-guest-agent-debuginfo-17:7.2.0-14.el9_2.24.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-guest-agent-debuginfo-17:7.2.0-14.el9_2.24.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-img-17:7.2.0-14.el9_2.24.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-img-17:7.2.0-14.el9_2.24.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-img-17:7.2.0-14.el9_2.24.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-img-17:7.2.0-14.el9_2.24.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-img-debuginfo-17:7.2.0-14.el9_2.24.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-img-debuginfo-17:7.2.0-14.el9_2.24.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-img-debuginfo-17:7.2.0-14.el9_2.24.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-img-debuginfo-17:7.2.0-14.el9_2.24.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-kvm-17:7.2.0-14.el9_2.24.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-kvm-17:7.2.0-14.el9_2.24.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-kvm-17:7.2.0-14.el9_2.24.src as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-kvm-17:7.2.0-14.el9_2.24.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-kvm-audio-pa-17:7.2.0-14.el9_2.24.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-kvm-audio-pa-17:7.2.0-14.el9_2.24.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-kvm-audio-pa-17:7.2.0-14.el9_2.24.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-kvm-audio-pa-debuginfo-17:7.2.0-14.el9_2.24.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-kvm-audio-pa-debuginfo-17:7.2.0-14.el9_2.24.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-kvm-audio-pa-debuginfo-17:7.2.0-14.el9_2.24.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-kvm-block-curl-17:7.2.0-14.el9_2.24.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-kvm-block-curl-17:7.2.0-14.el9_2.24.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • qemu-kvm-block-curl-17:7.2.0-14.el9_2.24.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • +73 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

🔗 References (4)