Ivanti has released a security update to address an admin bypass vulnerability (CVE-2024-8963) affecting Ivanti Cloud Services Appliance (CSA) version 4.6.  A cyber threat actor could exploit this vulnerability in conjunction with CVE-2024-8190–detailed in a Sept. 13 Ivanti security advisory–to take control of an affected system. This vulnerability impacts all versions prior to patch 519.

Ivanti has confirmed limited exploitation and recommends that users upgrade to CSA version 5.0, as version 4.6 is end-of-life and no longer supported. CISA urges users and administrators review the Ivanti security advisory and apply the necessary updates. 

Note: CISA has added CVE-2024-8963 to its Known Exploited Vulnerabilities Catalog, which, per Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities, requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the specified due date to protect FCEB networks against active threats.