CVE-2022-23084

Name: CVE-2022-23084
Creator: NVD / NIST
Published: 2024-02-15T05:15:08.833+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2022-23084 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The total size of the user-provided nmreq to nmreq_copyin() was first computed and then trusted during the copyin. This time-of-check to time-of-use bug could lead to kernel memory corruption. On systems configured to include netmap in their devfs_ruleset, a privileged process running in a jail can affect the host environment.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

The total size of the user-provided nmreq to nmreq_copyin() was first computed and then trusted during the copyin. This time-of-check to time-of-use bug could lead to kernel memory corruption. On systems configured to include netmap in their devfs_ruleset, a privileged process running in a jail can affect the host environment.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.24%

15.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Freebsd	Freebsd	>= 12.0, < 12.3
Freebsd	Freebsd	12.3
Freebsd	Freebsd	13.0

References

https://security.freebsd.org/advisories/FreeBSD-SA-22:04.netmap.ascVendor Advisory
https://security.netapp.com/advisory/ntap-20240419-0003/Third Party Advisory
https://security.freebsd.org/advisories/FreeBSD-SA-22:04.netmap.ascVendor Advisory
https://security.netapp.com/advisory/ntap-20240419-0003/Third Party Advisory

Timeline

Published: Feb 15, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2022-23084?

How severe is CVE-2022-23084?

CVE-2022-23084 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2022-23084?

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-2022-23084?

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

Scan your code now

Source: NVD / NIST