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CVE-2021-22980

HIGHCVSS 7.8/10EPSS 0.28%

Last modified

CVE-2021-22980 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 0.28% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability
0.28%

19.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
F5Access Policy Manager Clients>= 7.1.5, < 7.1.8.5
F5Access Policy Manager Clients>= 7.1.9, < 7.1.9.8
F5Access Policy Manager Clients>= 7.2.1, < 7.2.1.1
F5Big-Ip Access Policy Manager>= 11.6.1, <= 11.6.5
F5Big-Ip Access Policy Manager>= 12.1.0, <= 12.1.5
F5Big-Ip Access Policy Manager>= 13.1.0, < 13.1.3.6
F5Big-Ip Access Policy Manager>= 14.1.0, <= 14.1.3
F5Big-Ip Access Policy Manager>= 15.1.0, <= 15.1.2
F5Big-Ip Access Policy Manager>= 16.0.0, < 16.0.1.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-22980?
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.
How severe is CVE-2021-22980?
CVE-2021-22980 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.28% probability of exploitation in the next 30 days.
How do I fix CVE-2021-22980?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-22980?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST