Trellix Agent 5.8.6 release includes feature enhancements and resolved issues.
Release details
For release date and build number details of 5.8.x, see KB51573.
Important
We have re-posted the Trellix Agent 5.8.6 extension build to resolve a display issue on the General policy page (see MA-17326 in the Resolved Issues section below). If you downloaded the initial release, download the latest extension build.
Rating
The rating defines the urgency for installing this update.
This release is mandatory for all environments. You must apply these updates to maintain a viable and supported product.
New features
The File Retrieval feature provides an asynchronous Single System Troubleshooting (SST) capability that allows administrators to retrieve specific files or directories from managed Windows endpoints by utilizing the System Information Reporter (SIR) to compress and upload the data to the Trellix ePO - On-prem server. For details, see File Retrieval.
The IsDomainController extended property is now available to help administrators easily and accurately identify Domain Controllers directly within the ePO console.
Enhancements
A configurable IP reporting mode allows administrators to explicitly define whether the agent reports the Default (fastest connection), IPv4, or IPv6 address to the Trellix console. For details, see Configure IP reporting mode.
The OpenSSL library is upgraded from version 1.0.2zl to 1.0.2zm across Windows, Linux, and macOS platforms to enhance security and cryptographic performance.
The End User License Agreement (EULA) and its corresponding URLs are updated and integrated directly into the Linux installation packages and extensions.
Resolved issues in Trellix Agent 5.8.6
Installation
Reference | Resolution |
|---|---|
MA-17186 | Resolves a severe performance issue on Windows Server 2025 where the process of adding Windows Features was impeded when Trellix Agent and the ENS Platform were running. |
Product manageability
Reference | Resolution |
|---|---|
MA-17185 | Resolves an issue that caused recurring errors for the Trellix Agent operating on specific Linux environments. |
MA-17198 | Resolves an issue where the Single System Troubleshooting permission set was not working as expected, allowing non-administrator users access without the explicit SST permission. |
MA-17217 | Resolves an issue on Linux and macOS environments where the message bus certificate update process terminated unexpectedly due to missing version information. |
MA-17320 | Resolves a security concern on Linux environments by restricting the agent home directory permissions to prevent potential data exposure. |
MA-17326 | Resolves an issue where the General policy page displayed a blank screen after an agent extension upgrade. |
Data Exchange Layer
Reference | Resolution |
|---|---|
DXLM-7592 | Resolves an issue on Linux where the agent package metadata incorrectly reported the architecture as "all" instead of the specific binary architecture. |
DXLM-7549 | Resolves an issue to prevent the unintended creation of the DXL configuration folder on non-UEFI Windows Server machines. |
Known issues
For a list of known issues, see Known Issues (KB96738).
Additional information
Trellix Agent compatibility with other products
To view the list of products and versions that are compatible with Trellix Agent 5.8.x release, see KB96739.