CVE-2026-116606

Barracuda Networks Email Security Gateway (ESG) Authentication Bypass Using an Alternate Path or Channel Vulnerability

Email Security Gateway 300 Firmware

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.

2. Nov 2026

Ausgewertete Quellen

• Hersteller
  https://trust.barracuda.com/security/pre-authentication-authorization-bypass-command-injection
• CISA
  https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-116606
• CISA
  Barracuda Networks Email Security Gateway (ESG) Authentication Bypass Using an Alternate Path or Channel Vulnerability
• NVD
  CVE-2026-116606
• GitHub
  https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0042.md