CVE-2026-2243: Qemu-kvm: heap buffer out-of-bounds read in vmdk compressed grain parsing

Overview

Severity
Medium (CVSS 5.1)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Exploit Status
Not Exploited
Patch Tuesday
2026-Feb
Released
2026-02-23
Last Updated
2026-02-24
EPSS Score
0.02% (percentile: 4.5%)

Affected Products (2)

Open Source Software

  • azl3 qemu 8.2.0-27 on Azure Linux 3.0
  • cbl2 qemu 6.2.0-26 on CBL Mariner 2.0

Revision History

  • 2026-02-23: Information published.
  • 2026-02-24: Information published.