CVE-2024-21763

Name: CVE-2024-21763
Creator: NVD / NIST
Published: 2024-02-14T17:15:11.63+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.52%

Last modified Jun 17, 2026

CVE-2024-21763 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. When BIG-IP AFM Device DoS or DoS profile is configured with NXDOMAIN attack vector and bad actor detection, undisclosed queries can cause the Traffic Management Microkernel (TMM) to terminate. NOTE: Software versions which have reached End of Technical Support (EoTS) are not evaluated. EPSS estimates a 0.52% chance of exploitation in the next 30 days.

Description

When BIG-IP AFM Device DoS or DoS profile is configured with NXDOMAIN attack vector and bad actor detection, undisclosed queries can cause the Traffic Management Microkernel (TMM) to terminate. NOTE: Software versions which have reached End of Technical Support (EoTS) are not evaluated

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

0.52%

39.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
F5	Big-Ip Advanced Firewall Manager	>= 17.1.0, < 17.1.1

References

https://my.f5.com/manage/s/article/K000137521Vendor Advisory
https://my.f5.com/manage/s/article/K000137521Vendor Advisory

Timeline

Published: Feb 14, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-21763?

How severe is CVE-2024-21763?

CVE-2024-21763 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.

How do I fix CVE-2024-21763?

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-2024-21763?

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

Scan your code now

Source: NVD / NIST