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Tenable Announces the Release of Nessus 2.2.5

July 22, 2005

Columbia, MD

Nessus 2.2.5, a maintenance release, has been released. It fixes several minor bugs and contains some speed improvements.

Here is a quick change summary :

(Slight) Speed improvements:

  • Faster scan startup speed (at the expense of a slightly bigger memory usage).
  • Faster scans in general

Depending on the speed of your hard drive and the OS you're running on, you may
experience up to 15% speed improvement.

Bug fixes:

  • Fixed the use of an uninitialized buffer in the shared socket code
  • Fixed some uninitialized variables in nessus_tcp_scanner
  • Fixed several null pointer dereferencements in libnasl
  • Several other minor bugs have been fixed (see bugs.nessus.org for details)


  • New NASL function 'send_capture()'
  • nessusd rotates nessusd.messages on startup if the file is too big
  • Enhanced nessus_tcp_scanner
  • nessus-fetch now calls nessus-update-plugins upon registration

If you already have a copy of Nessus installed, please note that the Nessus installer makes clean upgrades - no need to uninstall the older version prior to upgrading, and no need to re-register to get a new activation code for the plugin feed. 

About Tenable

Tenable®, Inc. is the Cyber Exposure company. Over 24,000 organizations around the globe rely on Tenable to understand and reduce cyber risk. As the creator of Nessus®, Tenable extended its expertise in vulnerabilities to deliver Tenable.io, the world’s first platform to see and secure any digital asset on any computing platform. Tenable customers include more than 50 percent of the Fortune 500, more than 20 percent of the Global 2000 and large government agencies. Learn more at tenable.com.

Contact Information:

Cayla Baker
[email protected]
(443) 539-6476