CVE-2026-4048

OS Command Injection Remote Code Execution Vulnerability in Progress LoadMaster, ECS Connection Manager, Object Scale Connection Manager & MOVEit WAF

CVSS 8.4 HIGHEPSS 2.1%CWE-77

OS Command Injection Remote Code Execution Vulnerability in UI in Progress ADC Products allows an authenticated attacker with “All” permissions to execute arbitrary commands on the LoadMaster appliance by exploiting unsanitized input in a custom WAF rule file during the file upload process.

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected products

Progress Software · ECS Connections Manager Progress Software · LoadMaster Progress Software · MOVEit WAF Progress Software · Object Scale Connection Manager

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

https://community.progress.com/s/article/LoadMaster-Security-Vulnerabilites-CVE-2026-3517-CVE-2026-3518-CVE-2026-3519-CVE-2026-4048-CVE-2026-21876