CVE-2026-3517: exploitation status and patch state

CVE-2026-3517 · CVSS 8.4 HIGH · EPSS 15% · patch available

OS Command Injection Remote Code Execution Vulnerability in API in Progress ADC Products allows an authenticated attacker with “Geo Administration” permissions to execute arbitrary commands on the LoadMaster appliance by exploiting unsanitized input in the 'addcountry' command

Is CVE-2026-3517 exploited?

• Not in the CISA KEV catalog.
• EPSS puts exploitation in the next 30 days at 15%.
• Public exploit code: none found in monitored sources.

Which products and versions are affected?

• Progress Software · LoadMaster · >= 7.1.32.0, < V7.2.63.0
• Progress Software · ECS Connections Manager · >= 7.2.49.0, < V7.2.63.0
• Progress Software · Object Scale Connection Manager · >= 7.2.62.0, < V7.2.63.0
• Progress Software · MOVEit WAF · >= 7.2.62.0, < V7.2.63.0
• progress · connection manager for objectscale · < 7.2.63.1
• progress · ecs connection manager · < 7.2.63.1

Is there a patch?

Yes. Update to one of these or later:

From Progress Software's CVE record · Progress Software advisory

From NVD's analysis

What PlainSec published about CVE-2026-3517

• Admin access turns Progress ADC into command execution risk (2026-04-22)

Primary sources

• NVD record
• Progress Software advisory

KEV and EPSS are re-checked daily. Record last updated 2026-10-25.