Home/CVE/OS Command Injection Remote Code Execution Vulnerability in UI in Progress ADC Products allows an authenticated attacker
CVE

CVE-2026-4048

OS Command Injection Remote Code Execution Vulnerability in UI in Progress ADC Products allows an authenticated attacker

OS Command Injection Remote Code Execution Vulnerability in UI in Progress ADC Products allows an authenticated attacker with “All” permissions to execute arbitrary commands on the LoadMaster appliance by exploiting unsanitized input in a custom WAF rule file during the file upload process.

HIGH · CVSS 8.4 EPSS 0.00031
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
▤

Affected Products & Versions

4
progress connection manager for objectscale< 7.2.63.1
progress ecs connection manager< 7.2.63.1
progress loadmaster< 7.2.54.17
progress loadmaster< 7.2.63.1
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Scoring & Timeline

8.4
HIGH · CVSS v3.1 · security@progress.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD20 Apr 2026 · 02:16 PM
CVSS VectorCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://community.progress.com/s/article/LoadMaster-Security-Vulnerabilites-CVE-2026-3517-CVE-2026-3518-CVE-2026-3519-CVE-2026-4048-CVE-2026-21876PatchVendor Advisory
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