CVE-2026-4048

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 3.1

7.2CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS

2.1% chance of exploitation in the next 30 days; higher than 81% of CVEs (scores of 2026-10-26)

CWE

CWE-77

Published

2026-04-20

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• progress:connection_manager_for_objectscale
• progress:ecs_connection_manager
• progress:loadmaster

References

• https://community.progress.com/s/article/LoadMaster-Security-Vulnerabilites-CVE-2026-3517-CVE-2026-3518-CVE-2026-3519-CVE-2026-4048-CVE-2026-21876

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