What is CVE-2022-3344?

CVE-2022-3344 is a medium-severity vulnerability in Linux Kernel, classified under Expected Behavior Violation. CVSS score: 5.5/10. Published 2022-10-25.

How severe is CVE-2022-3344?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Linux Kernel

CVE-2022-3344

A flaw was found in the KVM's AMD nested virtualization (SVM). A malicious L1 guest could purposely fail to intercept the shutdown of a cooperative nested guest (L2), possibly leading to a page fault and kernel panic in the host (L0).

Published 2022-10-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (12.4th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Linux Kernel
Linux Kernel — versions Affected versions <= 6.0.3

Weakness classification (CWE)

CWE-440 — Expected Behavior Violation

References

lore.kernel.org/lkml/20221020093055.224317-5-mlevitsk@redhat.com/T/
bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2022-3344?: CVE-2022-3344 is a medium-severity vulnerability in Linux Kernel, classified under Expected Behavior Violation. CVSS score: 5.5/10. Published 2022-10-25.
How severe is CVE-2022-3344?: Medium severity. CVSS v3 base score is 5.5 out of 10.