CVE-2026-3517

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

State: Published
Severity: 8.4 High
Published: Apr 20, 2026
Updated: Apr 22, 2026
Reserved: Mar 4, 2026

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Description

OS Command Injection Remote Code Execution Vulnerability in API in Progress ADC Products allows an authenticated attacker with “Geo Administration” permissions to execute arbitrary commands on the LoadMaster appliance by exploiting unsanitized input in the 'addcountry' command

Scores

CVSS	Score	Vector	Source
3.1	8.4 High	CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H	ProgressSoftware

Weaknesses

CWE-77

Affected Products

Product	Versions
LoadMasterProgress Software	7.1.32.0 to before V7.2.63.0Affected
ECS Connections ManagerProgress Software	7.2.49.0 to before V7.2.63.0Affected
Object Scale Connection ManagerProgress Software	7.2.62.0 to before V7.2.63.0Affected
MOVEit WAFProgress Software	7.2.62.0 to before V7.2.63.0Affected

References

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

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