CVE-2022-47946

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited 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

0.38% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 32.2% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-10-14.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2022-12-23 00:00Z3 YR AGO

Last updated

2026-10-14 18:39Z14 DAYS AGO

Reserved

2022-12-23

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

• CWE-416Use After FreeVariant

Data version

5.2

Document digest

2340785be8aeffbc071f3c57407b2c6f1b54921bdfacbc4fe64aa7d6f4d128d5

• www.openwall.comhttps://www.openwall.com/lists/oss-security/2022/12/22/2
• git.kernel.orghttps://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.161&id=0f544353fec8e717d37724d95b92538e1de79e86
• www.openwall.com[oss-security] 20221227 Re: Linux kernel: use-after-free in io_sqpoll_wait_sqhttp://www.openwall.com/lists/oss-security/2022/12/27/1mailing-list
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-794697.html