VULNERABILITY INTELLIGENCE

CVE-2011-2512

CVSS score5.8 MEDIUM
EPSS probability1.90%
CISA KEVNot currently listed
Published2012-06-21
Last modified2026-06-16
CVSS vectorAV:A/AC:L/Au:N/C:P/I:P/A:P

Description

The virtio_queue_notify in qemu-kvm 0.14.0 and earlier does not properly validate the virtqueue number, which allows guest users to cause a denial of service (guest crash) and possibly execute arbitrary code via a negative number in the Queue Notify field of the Virtio Header, which bypasses a signed comparison.

Weakness classification

  • CWE-20: Improper Input Validation

Primary references