CVEvulnerability
CVE-2025-11234
7.5 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2025-10-03
- Last modified
- 2026-10-18
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-416
Description
A flaw was found in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can lead to the callback firing later on and triggering a use-after-free in the use of the channel. This can be abused by a malicious client with network access to the VNC WebSocket port to cause a denial of service during the WebSocket handshake prior to the VNC client authentication.
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://access.redhat.com/errata/RHSA-2025:23228 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:0326 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:0332 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:0702 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:1831 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:18772 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:22147 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3077 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:3165 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:5578 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:59831 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:68513 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:69131 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2025-11234 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2401209 bugzilla.redhat.com