12.0.5 Updated Release Notes: Windows Agents (build 12.0.5804)

Release Schedule

Privilege Manager Release: October 28, 2026

Affected Versions

Windows Agent Software

12.0.5804 Bundled Privilege Manager Agent Installer

12.0.5804 Core Thycotic Agent (x64)

12.0.5804 Core Thycotic Agent (x86)

12.0.5804 Application Control Agent (x64)

12.0.5804 Application Control Agent (x86)

12.0.5804 Local Security Solution Agent (x64)

12.0.5804 Local Security Solution Agent (x86)

12.0.5548 Bundled Privilege Manager Core and Directory Services Agent

Installation Notes

Privilege Manager exclusively supports operating systems (OS) that have not reached their official End of Support. For optimal performance and compatibility, it is recommended to utilize Privilege Manager on a supported and actively maintained OS.
Delinea recommends as a best practice to create system restore points prior to doing system changes such as patches.

Delinea supports the use of software versions up to a year prior to the current version. You can find previous versions of the documentation here.

Known Issues

There is a security issue with Windows Core agent versions 13.0.1058 and older. A fix for this issue is included in v12 versions 12.0.5804 and newer, and v13 versions 13.0.2064 and newer of the Windows Core agent which is available on the Software Downloads page.

Delinea recommends customers who cannot immediately upgrade to use group policy or device management tooling to take the following actions on their workstations running the Privilege Manager Windows agent:
- Privilege Manager Cloud: Block inbound TCP on port 5593. There is no degradation in function from blocking the port.
- Privilege Manager On-premises: Block inbound TCP on port 5593, or at least restrict it to your Privilege Managerr web server IP address. If you block the port, agents pull updates from the server based on a set schedule.

Fixed Issues

Identifier	Release Notes
767860	Added Windows 26H2 operating system support.
762554	There is a security issue with Windows Core agent versions 13.0.1058 and older. A fix for this issue is included in v12 versions 12.0.5804 and newer, and v13 versions 13.0.2064 and newer of the Windows Core agent which is available on the Software Downloads page. Delinea recommends customers who cannot immediately upgrade to use group policy or device management tooling to take the following actions on their workstations running the Privilege Manager Windows Core agent: Privilege Manager Cloud: Block inbound TCP on port 5593. There is no degradation in function from blocking the port. Privilege Manager On-premises: Block inbound TCP on port 5593, or at least restrict it to your Privilege Manager web server IP address. If you block the port, agents pull updates from the server based on a set schedule.

Identifier

Release Notes

767860

Added Windows 26H2 operating system support.

762554

There is a security issue with Windows Core agent versions 13.0.1058 and older. A fix for this issue is included in v12 versions 12.0.5804 and newer, and v13 versions 13.0.2064 and newer of the Windows Core agent which is available on the Software Downloads page.

Delinea recommends customers who cannot immediately upgrade to use group policy or device management tooling to take the following actions on their workstations running the Privilege Manager Windows Core agent:

Privilege Manager Cloud: Block inbound TCP on port 5593. There is no degradation in function from blocking the port.

Privilege Manager On-premises: Block inbound TCP on port 5593, or at least restrict it to your Privilege Manager web server IP address. If you block the port, agents pull updates from the server based on a set schedule.