Vulnerability details

CVE-2026-3517

Progress Software ECS Connections ManagerProgress Software LoadMasterProgress Software MOVEit WAFProgress Software Object Scale Connection Manager

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

CVSS 3.1

8.4High

Official 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

CVSS scores

Score	Version	Source	Vector
8.4High	3.1	CVEProject cvelistV5 (CNA) (ProgressSoftware)	`CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
Progress Software	ECS Connections Manager	7.2.49.0 ≤ v < V7.2.63.0	CVEProject cvelistV5 (CNA)
Progress Software	LoadMaster	7.1.32.0 ≤ v < V7.2.63.0	CVEProject cvelistV5 (CNA)
Progress Software	MOVEit WAF	7.2.62.0 ≤ v < V7.2.63.0	CVEProject cvelistV5 (CNA)
Progress Software	Object Scale Connection Manager	7.2.62.0 ≤ v < V7.2.63.0	CVEProject cvelistV5 (CNA)

References and advisories

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

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Details

Published: 2026-04-20
Last updated: 2026-04-22
State: Published
Assigner (CNA): ProgressSoftware

Exploit prediction (EPSS)

15.48%

Probability of exploitation in 30 days

96.8%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

CWE-77