CVE-2021-29628

7.5 highEPSS 1.2%

High (7.5) in freebsd freebsd. EPSS 1.2% chance of exploitation in the next 30 days.

In FreeBSD 13.0-STABLE before n245764-876ffe28796c, 12.2-STABLE before r369857, 13.0-RELEASE before p1, and 12.2-RELEASE before p7, a system call triggering a fault could cause SMAP protections to be disabled for the duration of the system call. This weakness could be combined with other kernel bugs to craft an exploit.

Severity

CVSS 3.1

7.5 high

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

EPSS: 1.2% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-31)
CWE: CWE-863
Published: 2021-05-28
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

freebsd:freebsd

References

https://security.FreeBSD.org/advisories/FreeBSD-SA-21:11.smap.asc
https://security.netapp.com/advisory/ntap-20210713-0002/
https://security.FreeBSD.org/advisories/FreeBSD-SA-21:11.smap.asc
https://security.netapp.com/advisory/ntap-20210713-0002/

Check your stack JSON