CVE-2022-42332

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.27% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 19.0% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2023-03-21 00:00Z3 YR AGO

Last updated

2025-02-13 16:33Z1 YR AGO

Reserved

2022-10-03

Assigning CNA

XEN

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-416Use After FreeVariant

Data version

5.1

Document digest

6fbf873f8273e08f90b4a6104b4b2c5e80ccfcfd511f4975c19b5cf114787e92

• xenbits.xenproject.orghttps://xenbits.xenproject.org/xsa/advisory-427.txt
• xenbits.xen.orghttp://xenbits.xen.org/xsa/advisory-427.html
• www.openwall.com[oss-security] 20230321 Xen Security Advisory 427 v2 (CVE-2022-42332) - x86 shadow plus log-dirty mode use-after-freehttp://www.openwall.com/lists/oss-security/2023/03/21/1mailing-list
• lists.fedoraproject.orgFEDORA-2023-703f133eb3https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR/vendor-advisory
• lists.fedoraproject.orgFEDORA-2023-da8315e641https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L6PM4RE7MUE6OWA32ZVOXCP235RM2TM/vendor-advisory
• www.debian.orgDSA-5378https://www.debian.org/security/2023/dsa-5378vendor-advisory
• security.gentoo.orghttps://security.gentoo.org/glsa/202402-07