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Critical · 9.3 Known exploited Scanner template Public exploit CVE-2026-116606 EUVD-2026-115149GHSA-9fcr-mp7p-hprv

Authentication Bypass Allows Global Configuration Restore in Barracuda Email Security Gateway

Published Nov 2, 2026 · Updated Nov 11, 2026 · Assigned by Mandiant

Vendor: Barracuda Networks Product: Barracuda Email Security Gateway (ESG)

Description

An authentication bypass in Barracuda Email Security Gateway versions earlier than 9.4.0.030 allows an unauthenticated remote attacker to invoke a configuration-import function and restore a crafted, compatible backup archive, resulting in unauthorized modification of the appliance’s global configuration.

Affected products

VendorProductAffectedFixed
Barracuda Networks Barracuda Email Security Gateway (ESG) < 9.4.0.030 9.4.0.030

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Automated scanner template

A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.

Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.

Advisories 2

References