RHSA-2026:3165MediumCVSS 7.5

Red Hat Security Advisory: qemu-kvm security update

Published
February 24, 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 products117

  • Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-guest-agent-17:8.2.0-11.el9_4.19.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-guest-agent-17:8.2.0-11.el9_4.19.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-guest-agent-17:8.2.0-11.el9_4.19.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-guest-agent-17:8.2.0-11.el9_4.19.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-guest-agent-debuginfo-17:8.2.0-11.el9_4.19.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-guest-agent-debuginfo-17:8.2.0-11.el9_4.19.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-guest-agent-debuginfo-17:8.2.0-11.el9_4.19.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-guest-agent-debuginfo-17:8.2.0-11.el9_4.19.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-img-17:8.2.0-11.el9_4.19.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-img-17:8.2.0-11.el9_4.19.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-img-17:8.2.0-11.el9_4.19.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-img-17:8.2.0-11.el9_4.19.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-img-debuginfo-17:8.2.0-11.el9_4.19.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-img-debuginfo-17:8.2.0-11.el9_4.19.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-img-debuginfo-17:8.2.0-11.el9_4.19.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-img-debuginfo-17:8.2.0-11.el9_4.19.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-kvm-17:8.2.0-11.el9_4.19.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-kvm-17:8.2.0-11.el9_4.19.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-kvm-17:8.2.0-11.el9_4.19.src as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-kvm-17:8.2.0-11.el9_4.19.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-kvm-audio-dbus-debuginfo-17:8.2.0-11.el9_4.19.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-kvm-audio-dbus-debuginfo-17:8.2.0-11.el9_4.19.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-kvm-audio-dbus-debuginfo-17:8.2.0-11.el9_4.19.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-kvm-audio-pa-17:8.2.0-11.el9_4.19.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-kvm-audio-pa-17:8.2.0-11.el9_4.19.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-kvm-audio-pa-17:8.2.0-11.el9_4.19.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-kvm-audio-pa-debuginfo-17:8.2.0-11.el9_4.19.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-kvm-audio-pa-debuginfo-17:8.2.0-11.el9_4.19.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • qemu-kvm-audio-pa-debuginfo-17:8.2.0-11.el9_4.19.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • +87 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)