CVE-2021-22980

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-02-12 · updated 2026-06-17
Weakness: CWE-426

Description

In Edge Client version 7.2.x before 7.2.1.1, 7.1.9.x before 7.1.9.8, and 7.1.x-7.1.8.x before 7.1.8.5, an untrusted search path vulnerability in the BIG-IP APM Client Troubleshooting Utility (CTU) for Windows could allow an attacker to load a malicious DLL library from its current directory. User interaction is required to exploit this vulnerability in that the victim must run this utility on the Windows system. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Affected products

F5 Access Policy Manager Clients: from 7.1.5 before 7.1.8.5; from 7.1.9 before 7.1.9.8; from 7.2.1 before 7.2.1.1 — fixed in 7.1.8.5, 7.1.9.8, 7.2.1.1
F5 BIG-IP APM: from 11.6.1 through 11.6.5; from 12.1.0 through 12.1.5; from 13.1.0 before 13.1.3.6; from 14.1.0 through 14.1.3; from 15.1.0 through 15.1.2; from 16.0.0 before 16.0.1.1 — fixed in 13.1.3.6, 16.0.1.1

How to fix

Upgrade to a fixed version: F5 Access Policy Manager Clients 7.1.8.5, 7.1.9.8, 7.2.1.1; F5 BIG-IP APM 13.1.3.6, 16.0.1.1. Check the vendor advisory for mitigations.

References

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