CVE-2025-64437: KubeVirt Isolation Detection Flaw Allows Arbitrary File Permission Changes

Overview

Severity
Medium (CVSS 5)
CVSS Vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L
Exploit Status
Not Exploited
Patch Tuesday
2025-Nov
Released
2025-11-09
Last Updated
2026-01-02
EPSS Score
0.03% (percentile: 7.0%)

Affected Products (4)

Other

  • 20390-17086
  • 20703-17086
  • 20772-17086

Open Source Software

  • azl3 kubevirt 1.5.0-5 on Azure Linux 3.0

Revision History

  • 2025-11-09: Information published.
  • 2025-12-06: Information published.
  • 2025-12-07: Information published.
  • 2025-12-23: Information published.
  • 2026-01-02: Information published.