Loadmaster EUVD-2026-23858

| CVE-2026-3519 HIGH
Command Injection (CWE-77)
2026-04-20 ProgressSoftware GHSA-g4q4-3mm2-2w69
8.4
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Re-analysis Queued
Apr 20, 2026 - 19:07 vuln.today
cvss_changed
Analysis Generated
Apr 20, 2026 - 14:32 vuln.today

DescriptionNVD

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

AnalysisAI

Command injection in Progress LoadMaster, ECS Connections Manager, Object Scale Connection Manager, and MOVEit WAF allows authenticated administrators with 'VS Administration' privileges to execute arbitrary operating system commands on the appliance via unsanitized input to the 'aclcontrol' API command. CVSS 8.4 reflects high-privilege requirement but scope change indicates container escape or cross-boundary impact. …

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RemediationAI

Within 24 hours: Identify and inventory all affected Progress LoadMaster and ADC deployments; restrict network access to the 'aclcontrol' API endpoint to trusted administrative hosts only using firewall rules; audit administrative account access logs for the 'VS Administration' role. Within 7 days: Disable the 'aclcontrol' API endpoint if operationally feasible; enforce multi-factor authentication for all accounts with VS Administration permissions; conduct a security review of administrative access permissions. …

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EUVD-2026-23858 vulnerability details – vuln.today

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