Loadmaster EUVD-2026-23857

| CVE-2026-3518 HIGH
Command Injection (CWE-77)
2026-04-20 ProgressSoftware GHSA-wvwg-7g9q-g3v4
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 “All” permissions to execute arbitrary commands on the LoadMaster appliance by exploiting unsanitized input in the 'killsession' command

AnalysisAI

OS command injection in Progress LoadMaster, MOVEit WAF, ECS Connections Manager, and Object Scale Connection Manager API allows authenticated attackers with 'All' permissions to execute arbitrary commands on appliances via unsanitized input in the 'killsession' API endpoint. CVSS 8.4 (High) reflects adjacent network access vector and high privileges requirement, limiting exploitation to administrators or compromised admin accounts. …

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RemediationAI

Within 24 hours: Inventory all Progress LoadMaster, ECS Connections Manager, Object Scale Connection Manager, and MOVEit WAF instances and document current versions. Within 7 days: Restrict administrative access to these appliances to only essential personnel, enforce multi-factor authentication on all admin accounts, and implement network segmentation to limit lateral movement from compromised appliances. …

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EUVD-2026-23857 vulnerability details – vuln.today

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