Tenable broken plugin update takes Nessus agents offline

Sicherheit (Pexels, allgemeine Nutzung)[German]Tenable has published a support article pointing out a problem with its Nessus security solution caused by plugin updates. After the update, the Nessus agents are offline. Administrators must intervene manually to install an update and bring the Nessus agents back online.


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I came across the following tweet from my colleagues at Bleeping Computer about the Incident Report Tenable Vulnerability Management / Tenable Security Center / Nessus: Plugin Updates causing agents to go offline.

Tenable Incident Report Nessus outage

On December 31, 2024, a faulty differential plugin update paralyzed the agents of the vulnerability scanner Nessus, as the agents went offline after the update installation. Nessus agent versions 10.8.0 and 10.8.1 in the Americas, Europe and Asia were affected.

Tenable then promptly withdrew the faulty update. At the same time, Nessus Agent version 10.8.2 was released. This is intended to fix the problem of Nessus agents being taken offline. However, the version in question must be installed manually. Details can be found in the article How to Resolve Nessus Agent 10.8.0 and 10.8.1 Offline Issues using Group Policy from January 3, 2024. There is also an FAQ about Plugin Update Issue with Nessus Agent 10.8.0-10.8.1 with further information.


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