[ CVE-2026-105959 · Published 16 Oct 2026 ]
Vulnerability in Red Hat Enterprise Linux 6
CVSS 7.5
EPSS <1%No fix listed yet
[ Description ]Official description
A flaw was found in spice-server. The GLZ encoder dictionary restore path truncates a size_t allocation size to int when calling the malloc callback, allowing a malicious authenticated SPICE client during VM live migration to trigger a massive heap buffer overflow by sending a crafted max_encoders value in migration data.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.