CVE-2026-42408: F5 BIG-IP Access Policy Manager

Medium severity, CVSS 4.4. EPSS: 0.1% chance of exploitation in the next 30 days.

When BIG-IP DNS is provisioned, a vulnerability exists in an undisclosed TMOS Shell (tmsh) command that may allow a highly privileged authenticated attacker to view sensitive information.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

  • F5 BIG-IP Access Policy Manager: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Advanced Firewall Manager: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Advanced Web Application Firewall: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Analytics: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Application Acceleration Manager: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Application Security Manager: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Application Visibility And Reporting: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Automation Toolchain: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Carrier-Grade Nat: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Container Ingress Services: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Ddos Hybrid Defender: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Domain Name System: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Edge Gateway: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Fraud Protection Service: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Global Traffic Manager: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Link Controller: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Local Traffic Manager: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Policy Enforcement Manager: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP SSL Orchestrator: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Webaccelerator: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1
  • F5 BIG-IP Websafe: from 16.1.0, up to and including 16.1.6; from 17.1.0, up to and including 17.1.3; from 17.5.0, up to and including 17.5.1

Published 2026-05-13. Last modified 2026-06-23.