CVE-2026-4048OS Command Injection Remote Code Execution Vulnerability in Progress LoadMaster, ECS Connection Manager, Object Scale Connection Manager & MOVEit WAF
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It affects Progress Software LoadMaster and 6 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.4 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-77
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- ProgressSoftware
- NVD analysis
- Analyzed
- Record last updated
- Apr 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Progress Software LoadMaster progress_software:loadmaster (from the name) | from V7.1.20.0 before V7.2.63.0 | CNA record |
Progress Software ECS Connections Manager progress_software:ecs_connections_manager (from the name) | from V7.2.49.0 before V7.2.63.0 | CNA record |
Progress Software Object Scale Connection Manager progress_software:object_scale_connection_manager (from the name) | from V7.2.62.0 before V7.2.63.0 | CNA record |
Progress Software MOVEit WAF progress_software:moveit_waf (from the name) | from V7.2.62.0 before V7.2.63.0 | CNA record |
progress connection_manager_for_objectscale progress:connection_manager_for_objectscale | before 7.2.63.1 | NVD |
progress ecs_connection_manager progress:ecs_connection_manager | before 7.2.63.1 | NVD |
progress loadmaster progress:loadmaster | before 7.2.54.17; before 7.2.63.1 | NVD |
References
- https://community.progress.com/s/article/LoadMaster-Security-Vulnerabilites-CVE-2026-3517-CVE-2026-3518-CVE-2026-3519-CVE-2026-4048-CVE-2026-21876vendor-advisory, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.