Flowmon CVE-2026-2737

Upgrade to Progress Flowmon version 12.5.8 (for 12.x deployments) or version 13.0.6 (for 13.x deployments) as documented in the vendor security advisory at https://community.progress.com/s/article/CVE-2026-2737-Progress-Flowmon. These patched releases address the XSS vulnerability through proper input sanitization. Until patching is complete, implement compensating controls: restrict Flowmon administrative interface access to trusted internal networks only via firewall rules or VPN requirements (blocks external attackers from delivering malicious links to network-accessible endpoints); enforce multi-factor authentication for all administrator accounts (limits impact of credential compromise from successful XSS-based session theft); deploy web application firewall rules to detect and block common XSS patterns in Flowmon HTTP requests (may cause false positives requiring tuning); conduct administrator security awareness training emphasizing risks of clicking untrusted links while authenticated to management interfaces (relies on human behavior, less reliable than technical controls). Note that network restrictions provide strongest temporary mitigation by eliminating the AV:N attack vector, though this may conflict with legitimate remote administration requirements.