CVE-2026-57965

Publication date 29 June 2026

Last updated 16 July 2026

Ubuntu priority

Cvss 3 Severity Score

Description

A flaw was found in spice-vdagent. A malicious or compromised SPICE host can trigger an integer overflow by sending a specially crafted message. This vulnerability can lead to a heap buffer overflow, causing the spice-vdagent daemon to crash and resulting in a Denial of Service (DoS) for the virtual machine. This issue requires the SPICE host to be untrusted or compromised for exploitation.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
spice-vdagent	26.04 LTS resolute	Vulnerable, fix deferred
	25.10 questing	Ignored end of life, was needs-triage
	24.04 LTS noble	Vulnerable, fix deferred
	22.04 LTS jammy	Vulnerable, fix deferred
	20.04 LTS focal	Vulnerable, fix deferred
	18.04 LTS bionic	Vulnerable, fix deferred

Notes

mdeslaur

as of 2026-07-16, there is no fix for this issue available from spice-vdagent developers

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.1 · Medium

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	High
User interaction	None
Scope	Unchanged
Confidentiality impact	None
Integrity impact	Low
Availability impact	High

Scores

Parameter	Value
Base score	5.1 · Medium
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H