Integer overflow in Spice-Space Spice-Vdagent
CVE-2026-57965
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.
Vulnerability class: Integer Overflow
EPSS: 0.001 (1.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H.
Affected products
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, vdb-entry, Vendor Advisory)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-57965?
- CVE-2026-57965 is a medium-severity vulnerability in Spice-Space Spice-Vdagent, classified under Integer Overflow or Wraparound. CVSS score: 5.1/10. Published 2026-06-29.
- How severe is CVE-2026-57965?
- Medium severity. CVSS v3 base score is 5.1 out of 10.