RHSA-2026:1831MediumCVSS 7.5

Red Hat Security Advisory: qemu-kvm security update

Published
February 5, 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 products113

  • Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-guest-agent-18:10.0.0-14.el10_1.5.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-guest-agent-18:10.0.0-14.el10_1.5.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-guest-agent-18:10.0.0-14.el10_1.5.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-guest-agent-18:10.0.0-14.el10_1.5.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-guest-agent-debuginfo-18:10.0.0-14.el10_1.5.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-guest-agent-debuginfo-18:10.0.0-14.el10_1.5.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-guest-agent-debuginfo-18:10.0.0-14.el10_1.5.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-guest-agent-debuginfo-18:10.0.0-14.el10_1.5.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-img-18:10.0.0-14.el10_1.5.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-img-18:10.0.0-14.el10_1.5.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-img-18:10.0.0-14.el10_1.5.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-img-18:10.0.0-14.el10_1.5.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-img-debuginfo-18:10.0.0-14.el10_1.5.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-img-debuginfo-18:10.0.0-14.el10_1.5.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-img-debuginfo-18:10.0.0-14.el10_1.5.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-img-debuginfo-18:10.0.0-14.el10_1.5.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-kvm-18:10.0.0-14.el10_1.5.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-kvm-18:10.0.0-14.el10_1.5.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-kvm-18:10.0.0-14.el10_1.5.src as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-kvm-18:10.0.0-14.el10_1.5.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-kvm-audio-dbus-debuginfo-18:10.0.0-14.el10_1.5.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-kvm-audio-dbus-debuginfo-18:10.0.0-14.el10_1.5.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-kvm-audio-dbus-debuginfo-18:10.0.0-14.el10_1.5.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-kvm-audio-pa-18:10.0.0-14.el10_1.5.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-kvm-audio-pa-18:10.0.0-14.el10_1.5.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-kvm-audio-pa-18:10.0.0-14.el10_1.5.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-kvm-audio-pa-debuginfo-18:10.0.0-14.el10_1.5.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-kvm-audio-pa-debuginfo-18:10.0.0-14.el10_1.5.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • qemu-kvm-audio-pa-debuginfo-18:10.0.0-14.el10_1.5.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • +83 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)