VYPR
High severity7.5NVD Advisory· Published Oct 3, 2025· Updated Jun 1, 2026

CVE-2025-11234

CVE-2025-11234

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.

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Affected products

175

Patches

Vulnerability mechanics

References

12

News mentions

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