Vulnerability in F5 Big-Ip Access Policy Manager
CVE-2021-22998
On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and 11.6.x before 11.6.5.3, SYN flood protection thresholds are not enforced in secure network address translation (SNAT) listeners. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
EPSS: 0.009 (57.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- F5 Big-ip_access_policy_manager
- F5 Big-ip_advanced_firewall_manager
- F5 Big-ip_advanced_web_application_firewall
- F5 Big-ip_analytics
- F5 Big-ip_application_acceleration_manager
- F5 Big-ip_application_security_manager
- F5 Big-ip_ddos_hybrid_defender
- F5 Big-ip_domain_name_system
- F5 Big-ip_fraud_protection_service
- F5 Big-ip_global_traffic_manager
Public proof-of-concept exploits
References
- f5sirt@f5.com (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-22998?
- CVE-2021-22998 is a medium-severity vulnerability in F5 Big-Ip Access Policy Manager. CVSS score: 5.3/10. Published 2021-03-31.
- How severe is CVE-2021-22998?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-22998 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.