CVE-2026-57965 (GCVE-0-2026-57965)

Vulnerability from cvelistv5 – Published: 2026-06-29 07:53 – Updated: 2026-11-05 22:16
VLAI
Title
Spice-vdagent: integer overflow in udscs_write() leading to heap buffer overflow
Summary
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.
Severity
5.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 10:43 UTC
CWE
  • CWE-190 - Integer Overflow or Wraparound
Assigner
redhat CNA
References
URL Tags
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
Impacted products
Date Public
2026-05-27 00:00
Credits
Red Hat would like to thank Ashish Kunwar for reporting this issue.
Show details on NVD website
To clipboard 

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