CVE-2021-29632

Name: CVE-2021-29632
Creator: NVD / NIST
Published: 2022-01-18T17:15:08.31+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.85%

Last modified Jun 17, 2026

CVE-2021-29632 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.85% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.85%

53.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Freebsd	Freebsd	12.2
Freebsd	Freebsd	13.0

References

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

Timeline

Published: Jan 18, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-29632?

How severe is CVE-2021-29632?

CVE-2021-29632 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.85% probability of exploitation in the next 30 days.

How do I fix CVE-2021-29632?

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-2021-29632?

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

Scan your code now

Source: NVD / NIST