rootpwn

high · CVSS v3 7.5

CVE-2026-105959

A flaw was found in spice-server. The GLZ encoder dictionary restore path truncates a size_t allocation size to int when…

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.

Scores

Severity
high
CVSS v2
7.1
CVSS v3
7.5
CVSS v4
—
EPSS
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