CVE-2022-42309

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 20.8% of scored records. A rank, not a probability.

NVD base score

8.8 (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:C/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

2022-11-01 00:00Z3 YR AGO

Last updated

2024-08-03 13:03Z2 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-763Release of Invalid Pointer or ReferenceBase

Data version

5.1

Document digest

22c96a32c38e2e880d2ffcba8d0eb1de85709f25b9b50464453e11d81d7da094

• xenbits.xenproject.orghttps://xenbits.xenproject.org/xsa/advisory-414.txt
• xenbits.xen.orghttp://xenbits.xen.org/xsa/advisory-414.html
• www.openwall.com[oss-security] 20221101 Xen Security Advisory 414 v2 (CVE-2022-42309) - Xenstore: Guests can crash xenstoredhttp://www.openwall.com/lists/oss-security/2022/11/01/4mailing-list
• www.debian.orgDSA-5272https://www.debian.org/security/2022/dsa-5272vendor-advisory
• lists.fedoraproject.orgFEDORA-2022-07438e12dfhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/vendor-advisory
• lists.fedoraproject.orgFEDORA-2022-99af00f60ehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/vendor-advisory
• lists.fedoraproject.orgFEDORA-2022-9f51d13fa3https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/vendor-advisory
• security.gentoo.orgGLSA-202402-07https://security.gentoo.org/glsa/202402-07vendor-advisory