CVE-2022-23084

7.5 highEPSS 0.2%

High (7.5) in freebsd freebsd. EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 15% of CVEs (scores of 2026-10-31)
CWE: CWE-367
Published: 2024-02-15
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

freebsd:freebsd

References

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

Check your stack JSON