Vulnerability in F5 Big-ip
CVE-2026-41225
A vulnerability exists in iControl REST where a highly privileged, authenticated attacker with at least the Manager role can create configuration objects that allow running arbitrary commands. Note: Software versions which have reached E…
EPSS: 0.003 (19.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
Affected products
- F5 Big-ip — versions 21.1.0, 21.0.0, 17.5.0
- F5 Big-ip_access_policy_manager — versions 21.0.0
- F5 Big-ip_advanced_firewall_manager — versions 21.0.0
- F5 Big-ip_advanced_web_application_firewall — versions 21.0.0
- F5 Big-ip_analytics — versions 21.0.0
- F5 Big-ip_application_acceleration_manager — versions 21.0.0
- F5 Big-ip_application_security_manager — versions 21.0.0
- F5 Big-ip_application_visibility_and_reporting — versions 21.0.0
- F5 Big-ip_automation_toolchain — versions 21.0.0
- F5 Big-ip_carrier-grade_nat — versions 21.0.0
Weakness classification (CWE)
References
- f5sirt@f5.com (vendor-advisory, Mitigation, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-41225?
- CVE-2026-41225 is a critical-severity vulnerability in F5 Big-ip, classified under CWE-648. CVSS score: 9.1/10. Published 2026-05-13.
- How severe is CVE-2026-41225?
- Critical severity. CVSS v3 base score is 9.1 out of 10.