How severe is CVE-2021-22989?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Is CVE-2021-22989 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in F5 Big-Ip Access Policy Manager

CVE-2021-22989

On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and 11.6.x before 11.6.5.3, when running in Appliance mode with Advanced WAF or BIG-IP ASM provisioned, the TMUI, also referred to as the Configuration utility, has an authenticated remote command execution vulnerability in undisclosed pages. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Published 2021-03-31 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.088 (95.2th percentile), scored 2026-11-01.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 95.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.088 · newest: 0.088 · change: -0.000

Affected products

Public proof-of-concept exploits

DNTYO/F5_

References

support.f5.com/csp/article/K56142644 (Vendor Advisory)

Frequently asked questions

What is CVE-2021-22989?: CVE-2021-22989 is a critical-severity vulnerability in F5 Big-Ip Access Policy Manager. CVSS score: 9.1/10. Published 2021-03-31.
How severe is CVE-2021-22989?: Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2021-22989 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.