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Vulnerability DatabaseCVE-2021-22979

CVE-2021-22979: 
F5 BIG-IP Advanced Firewall Manager vulnerability analysis and mitigation

Overview

A reflected Cross-Site Scripting (XSS) vulnerability was discovered in BIG-IP's Configuration utility (CVE-2021-22979). The vulnerability affects BIG-IP versions 16.0.x before 16.0.1, 15.1.x before 15.1.1, 14.1.x before 14.1.2.8, 13.1.x before 13.1.3.5, and all 12.1.x versions when Fraud Protection Service is provisioned. The vulnerability was disclosed on January 6, 2021, and publicly announced on February 12, 2021 (CVE MITRE).

Technical details

The vulnerability exists in an undisclosed page of the BIG-IP Configuration utility when Fraud Protection Service is provisioned. It has received a CVSS v3.1 score of 7.5 (HIGH) and a CVSS v2.0 score of 7.8 (HIGH), indicating its significant severity (NVD).

Impact

The vulnerability allows an attacker to execute JavaScript in the context of the current logged-in user, potentially leading to unauthorized access to sensitive information or manipulation of the user's session (CVE MITRE).

Mitigation and workarounds

F5 Networks has released patches for affected versions. Users are advised to upgrade to versions 16.0.1, 15.1.1, 14.1.2.8, or 13.1.3.5 depending on their current version. Note that software versions which have reached End of Software Development (EoSD) are not evaluated (CERT FR).

Additional resources

Source: This report was generated using AI

Related F5 BIG-IP Advanced Firewall Manager vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-41433HIGH8.7
  • F5 BIG-IP Advanced Firewall Manager logoF5 BIG-IP Advanced Firewall Manager
  • cpe:2.3:a:f5:big-ip_access_policy_manager
NoYesMay 07, 2025
CVE-2025-41431HIGH8.7
  • F5 BIG-IP Advanced Firewall Manager logoF5 BIG-IP Advanced Firewall Manager
  • cpe:2.3:a:f5:big-ip_advanced_firewall_manager
NoYesMay 07, 2025
CVE-2025-41414HIGH8.7
  • F5 BIG-IP Advanced Firewall Manager logoF5 BIG-IP Advanced Firewall Manager
  • cpe:2.3:a:f5:big-ip_access_policy_manager
NoYesMay 07, 2025
CVE-2025-41399HIGH8.7
  • F5 BIG-IP Advanced Firewall Manager logoF5 BIG-IP Advanced Firewall Manager
  • cpe:2.3:a:f5:big-ip_application_security_manager
NoYesMay 07, 2025
CVE-2025-54500MEDIUM6.9
  • F5 BIG-IP Advanced Firewall Manager logoF5 BIG-IP Advanced Firewall Manager
  • cpe:2.3:a:f5:big-ip_access_policy_manager
NoYesAug 13, 2025

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