CVE-2021-29629

Name: CVE-2021-29629
Creator: NVD / NIST
Published: 2021-05-28T15:15:08.85+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.16%

Last modified Jun 17, 2026

CVE-2021-29629 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In FreeBSD 13.0-STABLE before n245765-bec0d2c9c841, 12.2-STABLE before r369859, 11.4-STABLE before r369866, 13.0-RELEASE before p1, 12.2-RELEASE before p7, and 11.4-RELEASE before p10, missing message validation in libradius(3) could allow malicious clients or servers to trigger denial of service in vulnerable servers or clients respectively.. EPSS estimates a 1.16% chance of exploitation in the next 30 days.

Description

In FreeBSD 13.0-STABLE before n245765-bec0d2c9c841, 12.2-STABLE before r369859, 11.4-STABLE before r369866, 13.0-RELEASE before p1, 12.2-RELEASE before p7, and 11.4-RELEASE before p10, missing message validation in libradius(3) could allow malicious clients or servers to trigger denial of service in vulnerable servers or clients respectively.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.16%

63.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Freebsd	Freebsd	11.4
Freebsd	Freebsd	12.2
Freebsd	Freebsd	13.0

References

https://security.FreeBSD.org/advisories/FreeBSD-SA-21:12.libradius.ascMitigation, Vendor Advisory
https://security.netapp.com/advisory/ntap-20210713-0003/Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-21:12.libradius.ascMitigation, Vendor Advisory
https://security.netapp.com/advisory/ntap-20210713-0003/Third Party Advisory

Timeline

Published: May 28, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-29629?

How severe is CVE-2021-29629?

CVE-2021-29629 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.16% probability of exploitation in the next 30 days.

How do I fix CVE-2021-29629?

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-2021-29629?

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

Scan your code now

Source: NVD / NIST