CVE-2022-33746

Name: CVE-2022-33746
Creator: NVD / NIST
Published: 2022-10-11T13:15:10.033+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.27%

Last modified Jun 17, 2026

CVE-2022-33746 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. P2M pool freeing may take excessively long The P2M pool backing second level address translation for guests may be of significant size. Therefore its freeing may take more time than is reasonable without intermediate preemption checks. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

Description

P2M pool freeing may take excessively long The P2M pool backing second level address translation for guests may be of significant size. Therefore its freeing may take more time than is reasonable without intermediate preemption checks. Such checking for the need to preempt was so far missing.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS Probability

0.27%

17.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-404

Affected Software

Vendor	Product	Versions
Xen	Xen	>= 4.13.0, <= 4.16.1
Fedoraproject	Fedora	35
Fedoraproject	Fedora	36
Fedoraproject	Fedora	37
Debian	Debian Linux	11.0

References

http://www.openwall.com/lists/oss-security/2022/10/11/3Mailing List, Mitigation, Patch, Third Party Advisory
http://xenbits.xen.org/xsa/advisory-410.htmlMitigation, Patch, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJOMUNGW6VTK5CZZRLWLVVEOUPEQBRHI/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWSC77GS5NATI3TT7FMVPULUPXR635XQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/
https://security.gentoo.org/glsa/202402-07
https://www.debian.org/security/2022/dsa-5272Third Party Advisory
https://xenbits.xenproject.org/xsa/advisory-410.txtMitigation, Patch, Vendor Advisory
http://www.openwall.com/lists/oss-security/2022/10/11/3Mailing List, Mitigation, Patch, Third Party Advisory
http://xenbits.xen.org/xsa/advisory-410.htmlMitigation, Patch, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJOMUNGW6VTK5CZZRLWLVVEOUPEQBRHI/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWSC77GS5NATI3TT7FMVPULUPXR635XQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/
https://security.gentoo.org/glsa/202402-07
https://www.debian.org/security/2022/dsa-5272Third Party Advisory
https://xenbits.xenproject.org/xsa/advisory-410.txtMitigation, Patch, Vendor Advisory

Timeline

Published: Oct 11, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-33746?

How severe is CVE-2022-33746?

CVE-2022-33746 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.

How do I fix CVE-2022-33746?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-33746?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST