Tenable Network Monitor 2025 Release Notes

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These release notes are listed in reverse chronological order. To jump to a place in the release notes, use the list to the right.

Tenable Network Monitor 6.5.2 - 2025-06-18

Tenable Network Monitor 6.5.2 is now available, fixing an issue with an unsigned Windows binary.

For instructions on how to install or upgrade Tenable Network Monitor, see:

Tenable Network Monitor 6.5.2 includes the following bug fix:

  • Fixed an issue where the nnm-6.5.1.exe binary was not signed.

Support is available for the following platforms:

  • Red Hat Linux ES 7 / CentOS 7 (RH 7.0 through 7.9) 64-bit

  • Red Hat Linux ES 8 / CentOS 8 (RH 8.2 through 8.10) 64-bit

    Note: This RPM is also supported in Oracle Linux 8 in Red Hat Compatible Kernel (RHCK) mode.

  • Red Hat Linux ES 9 (9.0 through 9.4) 64-bit

    Note: For all versions of Red Hat Linux ES and CentOS, Tenable Network Monitor requires that you have systemd and firewalld on your system.

  • Microsoft Windows 10, Server 2012, Server 2016, Server 2019, and Server 2022 (all 64-bit)

    Note: Tenable Network Monitor requires Microsoft Visual C++ Redistributable for Visual Studio 2015, 2017 and 2019. You must download the specific package vc_redist.x64.exe from the Microsoft downloads site.

Tenable Network Monitor 6.5.1 - 2025-05-22

Tenable Network Monitor 6.5.1 is now available, rebranding the product from Nessus Network Monitor to Tenable Network Monitor and adding support for modern ciphers.

For instructions on how to install or upgrade Tenable Network Monitor, see:

Note: This release includes a fix for a potential vulnerability. For more information, see the Tenable Product Security Advisory.

The following are changed functionality and performance enhancements included in Tenable Network Monitor 6.5.1:

  • Updated the product name from Tenable Nessus Network Monitor to Tenable Network Monitor.

  • Tenable Network Monitor now supports Red Hat Linux 8.10.

  • Tenable Network Monitor now supports modern ciphers, and no longer supports AES128-SHA and AES256-SHA.

  • Removed old plugins in the Tenable Network Monitor temp directory.

For more information about the features and functionality supported in this release, see theTenable Network Monitor 6.5.x User Guide and the Tenable Network Monitor Deployment Guide.

The following are security updates included in Tenable Network Monitor 6.5.1:

  • Support for curl 8.12.0

  • Support for expat-2.7.1

  • Support for jquery 3.7.1

  • Support for jquery-ui 1.14.0

  • Support for libpcap 1.10.5

  • Support for libxml2-2.13.8

  • Support for libxslt-1.1.43

  • Support for micromatch 4.0.8

  • Support for moment.js 2.30.1

  • Support for OpenSSL 3.0.16

  • Support for spin.js 4.1.2

Tenable Network Monitor 6.5.1 includes the following bug fixes:

  • Fixed an issue with an unsafe OpenSSL initialization.

  • Fixed an issue where Tenable Network Monitor failed to properly set Access Control Lists (ACLs) for the installation directory tree.

Support is available for the following platforms:

  • Red Hat Linux ES 7 / CentOS 7 (RH 7.0 through 7.9) 64-bit

  • Red Hat Linux ES 8 / CentOS 8 (RH 8.2 through 8.10) 64-bit

    Note: This RPM is also supported in Oracle Linux 8 in Red Hat Compatible Kernel (RHCK) mode.

  • Red Hat Linux ES 9 (9.0 through 9.4) 64-bit

    Note: For all versions of Red Hat Linux ES and CentOS, Tenable Network Monitor requires that you have systemd and firewalld on your system.

  • Microsoft Windows 10, Server 2012, Server 2016, Server 2019, and Server 2022 (all 64-bit)

    Note: Tenable Network Monitor requires Microsoft Visual C++ Redistributable for Visual Studio 2015, 2017 and 2019. You must download the specific package vc_redist.x64.exe from the Microsoft downloads site.