Integer Overflow Vulnerability in spice-vdagent Affects Red Hat Products
CVE-2026-57965

5.1MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
29 June 2026

What is CVE-2026-57965?

A vulnerability has been identified in spice-vdagent, where a malicious or compromised SPICE host could exploit the system by sending a specially crafted message. This exploitation may trigger an integer overflow, leading to a subsequent heap buffer overflow. As a result, the spice-vdagent daemon may crash, effectively causing a Denial of Service (DoS) to the affected virtual machine. Successful exploitation relies on the SPICE host being untrusted or previously compromised.

References

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

CVSS V3.1

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Ashish Kunwar for reporting this issue.
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