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CVE-2026-57965

Spice-vdagent: integer overflow in udscs_write() leading to heap buffer overflow

Published: Jun 29, 2026Updated: Jul 8, 2026 Sources: CVE List NVDCWE-190
5.1MEDIUM
NVD MITRE
EPSS Score
0.1%
Top 98.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:HUI:NS:UC:NI:LA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:HAvailability
High
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Weaknesses

CWE-190

Affected Products

Red Hat
commercial·USaka redhat
Red Hat Enterprise Linux 10On-premOS
Operating Systems / linux-distro
spice-space
commercial
spice-vdagentMixed
Security Products / vuln-mgmt-scanner
and 5 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2026-57965?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Initial Access
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References

https://access.redhat.com/security/cve/CVE-2026-57965
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2493581
bugzilla.redhat.com

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