VDB
DEBIAN-CVE-2025-11234
DEBIAN-CVE-2025-11234
PUBLISHED
CVSS 7.5 HIGH
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.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | qemu | 10.0.3+ds, 10.1.0, 10.1.0 |
| Debian:12 | qemu | 7.2+dfsg, 7.2+dfsg, * |
| Debian:11 | qemu | 1:8.0+dfsg-2, 1:8.0+dfsg-3, 1:8.0.2+dfsg-1 |
| Debian:13 | qemu | 0, 10.0.6+ds, 10.0.6+ds |
Timeline
- Oct 3, 2025 CVE Published
- Apr 28, 2026 CVE Updated