VulnerabilityModified

CVE-2021-22987

CRITICAL 9.9EPSS 13.6%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 13.6%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

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, the Traffic Management User Interface (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.

CVSS 3.1: 9.9 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS: 13.64% probability · 96th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Affected: 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 ddos hybrid defender · f5/big-ip domain name system · f5/big-ip fraud protection service · f5/big-ip global traffic manager · f5/big-ip link controller · f5/big-ip local traffic manager · f5/big-ip policy enforcement manager · f5/ssl orchestrator
Source: f5sirt@f5.com

EPSS trend

EPSS 13.6% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

https://support.f5.com/csp/article/K18132488Vendor Advisory
https://support.f5.com/csp/article/K18132488Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.