Barracuda security appliances hit by two critical vulnerabilities
Patches released for CVE-2026-116606 authorization bypass and CVE-2026-111560 command injection in Barracuda Email Security Gateway and other products.
Auth bypass in Barracuda Email Security Gateway before 9.4.0.030
Barracuda Email Security Gateway versions earlier than 9.4.0.030 have an authentication bypass that lets unauthenticated remote attackers invoke a configuration-import function and restore a crafted backup archive. This allows unauthorized modification of the appliance’s global configuration. The flaw affects all prior versions of the product.
What to do: Upgrade Barracuda Email Security Gateway to 9.4.0.030.
| Product | Affected | Fixed in |
|---|---|---|
| Barracuda Email Security Gateway | earlier than 9.4.0.030 | 9.4.0.030 |
Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.
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.
Patches released for CVE-2026-116606 authorization bypass and CVE-2026-111560 command injection in Barracuda Email Security Gateway and other products.
CVE-2026-116606 and CVE-2026-111560 could enable root access on ESG appliances.
Chaining the two vulnerabilities allows root access if the admin interface is accessible; restrict admin exposure to internal networks and update firmware.
Two critical vulnerabilities in Barracuda ESG and related products could enable root access; patches released for affected versions.
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