Vulnerability in F5 Big-Ip
CVE-2026-20732
A vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof error messages. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (4.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 4.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- F5 Big-Ip — versions 21.0.0, 17.5.0, 17.1.0
- F5 Big-Ip Access Policy Manager
- F5 Big-Ip Advanced Firewall Manager
- F5 Big-Ip Advanced Web Application Firewall
- F5 Big-Ip Analytics
- F5 Big-Ip Application Acceleration Manager
- F5 Big-Ip Application Security Manager
- F5 Big-Ip Application Visibility And Reporting
- F5 Big-Ip Automation Toolchain
- F5 Big-Ip Carrier-Grade Nat
Weakness classification (CWE)
References
- my.f5.com/manage/s/article/K000156644 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-20732?
- CVE-2026-20732 is a low-severity vulnerability in F5 Big-Ip, classified under User Interface (UI) Misrepresentation of Critical Information. CVSS score: 3.1/10. Published 2026-02-04.
- How severe is CVE-2026-20732?
- Low severity. CVSS v3 base score is 3.1 out of 10.