CVE-2026-116606
Authentication Bypass Allows Global Configuration Restore in Barracuda Email Security Gateway
Barracuda Networks·Barracuda Email Security Gateway (ESG)
- Added
- Nov 10, 2026
- Fix due
- Nov 13, 2026
- Ransomware
- Not known
- Published
- Nov 2, 2026
- Updated
- Nov 11, 2026
- First covered
- Nov 4, 2026
- Latest story
- 1 week ago
Summary
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.
CWE-288Authentication bypass using an alternate path or channel
Attack profile
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NCISA required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Affected products
- Barracuda Networks Barracuda Email Security Gateway (ESG)before 9.4.0.030