Vulnerability in F5 Big-ip
CVE-2025-61938
When a BIG-IP Advanced WAF or ASM security policy is configured with a URL greater than 1024 characters in length for the Data Guard Protection Enforcement setting, either manually or through the automatic Policy Builder, the bd process ca…
EPSS: 0.003 (23.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- F5 Big-ip — versions 17.5.0, 17.1.0, 16.1.0
- F5 Big-ip_advanced_web_application_firewall — versions 17.5.0
- F5 Big-ip_application_security_manager — versions 17.5.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- f5sirt@f5.com (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-61938?
- CVE-2025-61938 is a high-severity vulnerability in F5 Big-ip, classified under Improper Validation of Specified Quantity in Input. CVSS score: 7.5/10. Published 2025-10-15.
- How severe is CVE-2025-61938?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-61938 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.