CVE-2026-105959
HIGH
NVD
CVSS Score
7.5
Severity
HIGH
Published
Oct 16, 2026
Vendor
unknown
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.