CVE-2021-23029

8.8 highEPSS 0.9%

High (8.8) in f5. EPSS 0.9% chance of exploitation in the next 30 days.

On version 16.0.x before 16.0.1.2, insufficient permission checks may allow authenticated users with guest privileges to perform Server-Side Request Forgery (SSRF) attacks through F5 Advanced Web Application Firewall (WAF) and the BIG-IP ASM Configuration utility. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Severity

CVSS 3.1

8.8 high

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

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
CWE: CWE-918
Published: 2021-09-14
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

f5:big-ip_advanced_web_application_firewall
f5:big-ip_application_security_manager

References

https://support.f5.com/csp/article/K52420610
https://support.f5.com/csp/article/K52420610

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