BIGIP AFM TMM Crash from Undisclosed DoS Requests
CVE-2025-59478 Published on October 15, 2025
BIG-IP AFM DoS protection profile vulnerability
When a BIG-IP AFM denial-of-service (DoS) protection profile is configured on a virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Vulnerability Analysis
CVE-2025-59478 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
Access of Uninitialized Pointer
The program accesses or uses a pointer that has not been initialized.
Products Associated with CVE-2025-59478
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Affected Versions
F5 BIG-IP:- Version 17.5.0 and below 17.5.1 is affected.
- Version 17.1.0 and below 17.1.3 is affected.
- Version 16.1.0 and below * is unaffected.
- Version 15.1.0 and below 15.1.10.8 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.