What is CVE-2021-29632?

CVE-2021-29632 is a high-severity vulnerability in FreeBSD. CVSS score: 7.5/10. Published 2022-01-18.

How severe is CVE-2021-29632?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in FreeBSD

CVE-2021-29632

In FreeBSD 13.0-STABLE before n247428-9352de39c3dc, 12.2-STABLE before r370674, 13.0-RELEASE before p6, and 12.2-RELEASE before p12, certain conditions involving use of the highlight buffer while text is scrolling on the console, console data may overwrite data structures associated with the system console or other kernel memory.

Published 2022-01-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.009 (56.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

FreeBSD — versions 12.2, 13.0
FreeBSD — versions FreeBSD 13.0-RELEASE before p6, 12.2-RELEASE before p12

References

security.freebsd.org/advisories/FreeBSD-SA-22:01.vt.asc (Mitigation, Vendor Advisory)
security.netapp.com/advisory/ntap-20220217-0004/ (Third Party Advisory)

Frequently asked questions

What is CVE-2021-29632?: CVE-2021-29632 is a high-severity vulnerability in FreeBSD. CVSS score: 7.5/10. Published 2022-01-18.
How severe is CVE-2021-29632?: High severity. CVSS v3 base score is 7.5 out of 10.