What’s Vulnerable › Vulnerabilities

CVE-2021-23031

• Severity: critical (CVSS 9.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-09-14 · updated 2026-06-17
• Weakness: CWE-78

Description

On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3, 14.1.x before 14.1.4.1, 13.1.x before 13.1.4, 12.1.x before 12.1.6, and 11.6.x before 11.6.5.3, an authenticated user may perform a privilege escalation on the BIG-IP Advanced WAF and ASM Configuration utility. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

• F5 Big-Ip Advanced Web Application Firewall: from 11.6.1 through 11.6.5.2; from 12.1.0 through 12.1.5; from 13.1.0 through 13.1.3; from 14.1.0 through 14.1.4; from 15.1.0 through 15.1.2; from 16.0.0 through 16.0.1.1
• BIG-IP ASM: from 11.6.1 through 11.6.5.2; from 12.1.0 through 12.1.5; from 13.1.0 through 13.1.3; from 14.1.0 through 14.1.4; from 15.1.0 through 15.1.2; from 16.0.0 through 16.0.1.1

References

• https://support.f5.com/csp/article/K41351250
• https://support.f5.com/csp/article/K41351250

Get alerted when CVE-2021-23031 or the next vulnerability affects your stack