CVE-2022-26357

Name: CVE-2022-26357
Creator: NVD / NIST
Published: 2022-04-05T13:15:07.777+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7/10EPSS 0.25%

Last modified Jun 17, 2026

CVE-2022-26357 is a high-severity vulnerability rated 7/10 on the CVSS scale. race in VT-d domain ID cleanup Xen domain IDs are up to 15 bits wide. VT-d hardware may allow for only less than 15 bits to hold a domain ID associating a physical device with a particular domain. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

Description

race in VT-d domain ID cleanup Xen domain IDs are up to 15 bits wide. VT-d hardware may allow for only less than 15 bits to hold a domain ID associating a physical device with a particular domain. Therefore internally Xen domain IDs are mapped to the smaller value range. The cleaning up of the housekeeping structures has a race, allowing for VT-d domain IDs to be leaked and flushes to be bypassed.

Metrics

CVSS 3.1

7/10

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

EPSS Probability

0.25%

15.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-362

Affected Software

Vendor	Product	Versions
Xen	Xen	>= 4.11.0, < 4.12.0
Xen	Xen	>= 4.13.0, < 4.16.0
Debian	Debian Linux	11.0
Fedoraproject	Fedora	34
Fedoraproject	Fedora	35

References

http://www.openwall.com/lists/oss-security/2022/04/05/2Mailing List, Patch, Third Party Advisory
http://xenbits.xen.org/xsa/advisory-399.htmlPatch, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ETPM2OVZZ6KOS2L7QO7SIW6XWT5OW3F/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHFSRVLM2JUCPDC2KGB7ETPQYJLCGBLD/
https://security.gentoo.org/glsa/202402-07
https://www.debian.org/security/2022/dsa-5117Third Party Advisory
https://xenbits.xenproject.org/xsa/advisory-399.txtVendor Advisory
http://www.openwall.com/lists/oss-security/2022/04/05/2Mailing List, Patch, Third Party Advisory
http://xenbits.xen.org/xsa/advisory-399.htmlPatch, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ETPM2OVZZ6KOS2L7QO7SIW6XWT5OW3F/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHFSRVLM2JUCPDC2KGB7ETPQYJLCGBLD/
https://security.gentoo.org/glsa/202402-07
https://www.debian.org/security/2022/dsa-5117Third Party Advisory
https://xenbits.xenproject.org/xsa/advisory-399.txtVendor Advisory

Timeline

Published: Apr 5, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-26357?

How severe is CVE-2022-26357?

CVE-2022-26357 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.

How do I fix CVE-2022-26357?

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-2022-26357?

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

Scan your code now

Source: NVD / NIST