CVE-2026-40435

Medium

Description

When configured, IP-based access restrictions for httpd do not cover all endpoints, which may allow connections from blocked addresses.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

SeverityMedium
CVSS5.3
Exploit probability—
ProductF5 Big-ip Access Policy Manager
PublishedMay 13, 2026
First seenMay 13, 2026
Weakness typeCWE-420CWE-420

How to fix

Affected products

ProductAffected versionsFixed in
f5 big-ip_access_policy_manager17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_advanced_firewall_manager17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_advanced_web_application_firewall17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_analytics17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_application_acceleration_manager17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_application_security_manager17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_application_visibility_and_reporting17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_automation_toolchain17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_carrier-grade_nat17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_container_ingress_services17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_ddos_hybrid_defender17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_domain_name_system17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_edge_gateway17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_fraud_protection_service17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_global_traffic_manager17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_link_controller17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_local_traffic_manager17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_policy_enforcement_manager17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_ssl_orchestrator17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_webaccelerator17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—
f5 big-ip_websafe17.1.0 ≤ v ≤ 17.1.3, 17.5.0 ≤ v ≤ 17.5.1, 16.1.0 ≤ v ≤ 16.1.6—

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