CVE-2026-9863: Fortra Core Privileged Access Manager Server

High severity, CVSS 8.8. EPSS: 1% chance of exploitation in the next 30 days.

Fortra BoKS Manager contains an OS command injection vulnerability in the client upgrade and patch tooling for legacy tar-based client installations. A malicious or compromised legacy tar-installed client selected for upgrade or patching may be able to cause commands to be executed on the BoKS Master during client version handling.

Affected products

• Fortra Core Privileged Access Manager Server: from 8.1.0.0, before 8.1.0.23 (fixed in 8.1.0.23); from 9.0.0.0, before 9.0.0.5 (fixed in 9.0.0.5)

Published 2026-06-15. Last modified 2026-07-28.