CVE-2023-28724: F5 Nginx API Connectivity Manager

High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days.

NGINX Management Suite default file permissions are set such that an authenticated attacker may be able to modify sensitive files on NGINX Instance Manager and NGINX API Connectivity Manager.   Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

• F5 Nginx API Connectivity Manager: from 1.0.0, before 1.5.0 (fixed in 1.5.0)
• F5 Nginx Instance Manager: from 2.0.0, before 2.9.0 (fixed in 2.9.0)
• F5 Nginx Security Monitoring: from 1.0.0, before 1.3.0 (fixed in 1.3.0)

Published 2023-05-03. Last modified 2026-06-17.