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CVE-2021-22991 PUBLISHED KEV CVSS 6.800000190734863 MEDIUM

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, and 12.1.x before 12.1.5.3, undisclosed requests to a virtual server may be incorrectly handled by the Traffic Management Microkernel (TMM) URI normalization, which may trigger a buffer overflow, resulting in a DoS attack. In certain situations, it may theoretically allow bypass of URL based access control or remote code execution (RCE). Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

EPSS 73.09% · 98.8th percentile

Risk Scores

CVSS v2.0
6.800000190734863
EPSS Score
73.09%
98.8th percentile

Affected Products

VendorProductVersions
f5big-ip_ddos_hybrid_defender12.1.0, 16.0.0, 15.1.0
f5big-ip_advanced_web_application_firewall13.1.0, 12.1.0, 15.1.0
f5big-ip_fraud_protection_service13.1.0, 12.1.0, 16.0.0
f5big-ip_access_policy_manager12.1.0, 16.0.0, 15.1.0
f5big-ip_global_traffic_manager15.1.0, 12.1.0, 13.1.0
f5big-ip_local_traffic_manager15.1.0, 16.0.0, 12.1.0
f5big-ip_application_security_manager16.0.0, 12.1.0, 13.1.0
f5big-ip_application_acceleration_manager15.1.0, 12.1.0, 13.1.0
f5big-ip_link_controller16.0.0, 15.1.0, 14.1.0
f5big-ip_analytics15.1.0, 16.0.0, 12.1.0
f5big-ip_advanced_firewall_manager14.1.0, 12.1.0, 13.1.0
f5big-ip_domain_name_system16.0.0, 15.1.0, 14.1.0
f5big-ip_policy_enforcement_manager14.1.0, 12.1.0, 13.1.0
n/aBIG-IP16.0.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
f5ssl_orchestrator16.0.0, 12.1.0, 13.1.0

Timeline

References

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