Applied Cybernetics Group
Threat intel → detection pipeline
Tuesday, July 14, 2026
Data as of 20:11 UTC

known ransomware use

F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution Vulnerability

Added to KEV
2021-11-03
Federal due date
2022-05-03
Vendor
F5
Product
BIG-IP
EPSS
100.0th percentile (score 1.000, as of 2026-07-13)
NVD CVSS v3.1
Ransomware use
Known
ATT&CK
T1003 , T1005 , T1059 , T1070.004 , T1133 , T1190 , T1552 , T1562.001 · signal rollup
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2020-5902

CISA short description

F5 BIG-IP Traffic Management User Interface (TMUI) contains a remote code execution vulnerability in undisclosed pages.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.