CVE-2021-23030: f5 big-ip_advanced_web_application_firewall Improper Input Validation
Vulnerability summary
CVE-2021-23030 is a high (CVSS 7.5) Improper Input Validation vulnerability in f5 big-ip_advanced_web_application_firewall. EPSS estimates a 0.96% chance of exploitation in the next 30 days, higher than 61.1% of scored vulnerabilities.
Timeline
- 14-09-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
On BIG-IP Advanced WAF and BIG-IP ASM version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.3, 13.1.x before 13.1.4.1, and all versions of 12.1.x, when a WebSocket profile is configured on a virtual server, undisclosed requests can cause bd to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
0.96%
Chance of exploitation in the next 30 days
Percentile
61%
Versus all other CVEs
30-day change
0.00 pp
From 0.96% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
F52 products
- big-ip_advanced_web_application_firewall≥ 12.1.0, ≤ 12.1.6 | ≥ 13.1.0, ≤ 13.1.4 | ≥ 14.1.0, ≤ 14.1.4 | ≥ 15.1.0, ≤ 15.1.3 | ≥ 16.0.0, ≤ 16.0.1.1
- big-ip_application_security_manager≥ 12.1.0, ≤ 12.1.6 | ≥ 13.1.0, ≤ 13.1.4 | ≥ 14.1.0, ≤ 14.1.4 | ≥ 15.1.0, ≤ 15.1.3 | ≥ 16.0.0, ≤ 16.0.1.1
1 vendor · 2 products