High severity7.5NVD Advisory· Published Oct 16, 2026· Updated Oct 16, 2026
CVE-2026-105959
CVE-2026-105959
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.
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Affected products
2Patches
Vulnerability mechanics
References
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