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CVE-2026-3518— OS Command Injection Remote Code Execution Vulnerability in Progress LoadMaster, ECS Connection Manager, Object Scale Connection Manager & MOVEit WAF

Quick assessment

Affected
Progress Software LoadMaster
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Progress LoadMaster是美国Progress公司的一款高性能的应用程序交付控制器 （ADC） 和负载均衡器。 Progress LoadMaster存在安全漏洞，该漏洞源于killsession命令输入未清理，可能导致具有All权限的经过身份验证的攻击者执行任意命令。

CVSS 8.4 · High EPSS 4.18% · P91

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-3518

Vulnerability Information
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Vulnerability Title
OS Command Injection Remote Code Execution Vulnerability in Progress LoadMaster, ECS Connection Manager, Object Scale Connection Manager & MOVEit WAF
Source: CVE Program / CVE List V5
Vulnerability Description
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
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Progress LoadMaster 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Progress LoadMaster是美国Progress公司的一款高性能的应用程序交付控制器 （ADC） 和负载均衡器。 Progress LoadMaster存在安全漏洞，该漏洞源于killsession命令输入未清理，可能导致具有All权限的经过身份验证的攻击者执行任意命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Progress Software LoadMaster V7.2.37.0 ~ V7.2.63.0 -
Progress Software ECS Connections Manager V7.2.49.0 ~ V7.2.63.0 -
Progress Software Object Scale Connection Manager V7.2.62.0 ~ V7.2.63.0 -
Progress Software MOVEit WAF V7.2.62.0 ~ V7.2.63.0 -

II. Public POCs for CVE-2026-3518

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III. Intelligence Information for CVE-2026-3518

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Vendor Advisories for CVE-2026-3518 (1)

Same Patch Batch · Progress Software · 2026-04-20 · 4 CVEs total

CVE-2026-3519 8.4 HIGH OS Command Injection Remote Code Execution Vulnerability in Progress LoadMaster, ECS Conne
CVE-2026-3517 8.4 HIGH OS Command Injection Remote Code Execution Vulnerability in Progress LoadMaster, ECS Conne
CVE-2026-4048 8.4 HIGH OS Command Injection Remote Code Execution Vulnerability in Progress LoadMaster, ECS Conne

IV. Related Vulnerabilities

Same product: LoadMaster
Same vendor: Progress Software
Same weakness: CWE-77

V. Comments for CVE-2026-3518

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