Fortinet Patches Critical Vulnerabilities in FortiFone, FortiSIEM

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Fortinet Patches Critical Vulnerabilities in FortiFone, FortiSIEM

Feeds.Feedburner •Ionut Arghire • January 14, 2026

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Exploitable without authentication, the two security defects could lead to configuration leak and code execution.

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Fortinet Addresses Critical Vulnerabilities in Multiple Products Fortinet has patched critical vulnerabilities affecting FortiOS, FortiWeb, FortiProxy, and FortiSwitchManager. These security defects, which allow for authentication bypass and could lead to configuration leaks and code execution, were found to be exploitable without authentication. Users with FortiCloud SSO login authentication enabled are particularly impacted. 6 sources 45

Extracted Entities

Platforms (2)

FortiFone FortiSIEM