CVE-2023-40537: F5 BIG-IP Access Policy Manager

High severity, CVSS 8.1. EPSS: 0.5% chance of exploitation in the next 30 days.

An authenticated user's session cookie may remain valid for a limited time after logging out from the BIG-IP Configuration utility on a multi-blade VIPRION platform.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

  • F5 BIG-IP Access Policy Manager: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)
  • F5 BIG-IP Advanced Firewall Manager: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)
  • F5 BIG-IP Advanced Web Application Firewall: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)
  • F5 BIG-IP Analytics: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)
  • F5 BIG-IP Application Acceleration Manager: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)
  • F5 BIG-IP Application Security Manager: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)
  • F5 BIG-IP Application Visibility And Reporting: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)
  • F5 BIG-IP Carrier-Grade Nat: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)
  • F5 BIG-IP Ddos Hybrid Defender: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)
  • F5 BIG-IP Domain Name System: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)
  • F5 BIG-IP Fraud Protection Service: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)
  • F5 BIG-IP Global Traffic Manager: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)
  • F5 BIG-IP Link Controller: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)
  • F5 BIG-IP Local Traffic Manager: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)
  • F5 BIG-IP Policy Enforcement Manager: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)
  • F5 BIG-IP SSL Orchestrator: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)
  • F5 BIG-IP Webaccelerator: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)
  • F5 BIG-IP Websafe: from 13.1.0, up to and including 14.1.5; from 15.1.0, before 15.1.9 (fixed in 15.1.9); from 16.1.0, before 16.1.4 (fixed in 16.1.4)

Published 2023-10-10. Last modified 2026-06-17.