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Vulnerability DatabaseCVE-2021-23029

CVE-2021-23029: 
F5 BIG-IP Virtual Edition (tier - best) vulnerability analysis and mitigation

Overview

CVE-2021-23029 affects F5's BIG-IP Advanced Web Application Firewall (WAF) and BIG-IP ASM Configuration utility version 16.0.x before 16.0.1.2. The vulnerability involves insufficient permission checks that could allow authenticated users with guest privileges to perform Server-Side Request Forgery (SSRF) attacks (NVD, CVE).

Technical details

The vulnerability has been assigned a CVSS v3.1 Base Score of 8.8 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. The weakness is categorized as CWE-918 (Server-Side Request Forgery) (NVD).

Impact

When successfully exploited, this vulnerability allows authenticated users with guest privileges to perform Server-Side Request Forgery (SSRF) attacks through the F5 Advanced Web Application Firewall (WAF) and the BIG-IP ASM Configuration utility, potentially leading to unauthorized access to internal resources (Hacker News).

Mitigation and workarounds

F5 has released a patch to address this vulnerability. Users should upgrade to version 16.0.1.2 or later. Software versions which have reached End of Technical Support (EoTS) are not evaluated (CVE).

Additional resources

Source: This report was generated using AI

Related F5 BIG-IP Virtual Edition (tier - best) vulnerabilities:

CVE ID

Severity

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Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-61990HIGH8.7
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  • F5 BIG-IP Virtual EditionF5 BIG-IP Virtual Edition
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CVE-2025-61933MEDIUM5.1
  • F5 BIG-IP Virtual Edition (tier - best)F5 BIG-IP Virtual Edition (tier - best)
  • cpe:2.3:a:f5:big-ip_access_policy_manager
NoYesOct 15, 2025

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