Experts Demonstrate Barracuda Email Security Gateway Chain Enabling Root Access Without Login

Two flaws in Barracuda’s Email Security Gateway, an email-filtering appliance, can be chained to run commands on it as root, its highest level of access, with no login required.

The company released patches on Monday, and the security firm watchTowr detailed the attack chain on Thursday.

One flaw, CVE-2026-116606, is an authorization bypass. An unauthenticated attacker can use it to restore a

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