What’s Vulnerable › Vulnerabilities
CVE-2025-35995: BIG-IP PEM vulnerability
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-05-07 · updated 2026-06-17
- Weakness: CWE-125
Description
When a BIG-IP PEM system is licensed with URL categorization, and the URL categorization policy or an iRule with the urlcat command is enabled on a virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Affected products
- F5 Networks, Inc. BIG-IP (PEM): from 15.1.0 before 15.1.10.7.0.4.5; from 16.1.0 before 16.1.6; from 17.1.0 before 17.1.2.2 — fixed in 15.1.10.7.0.4.5, 16.1.6, 17.1.2.2
How to fix
Upgrade to a fixed version: F5 Networks, Inc. BIG-IP (PEM) 15.1.10.7.0.4.5, 16.1.6, 17.1.2.2. Check the vendor advisory for mitigations.
References
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