Vulnerability Intelligence Report
Authentication Bypass Allows Global Configuration Restore in Barracuda Email Security Gateway
CVE-2026-116606
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.
CISA KEV
Nuclei Template
SSVC: Active Exploitation
Automatable
CVSS Base Score
9.3
CRITICAL
EPSS Probability:1.60%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-288 ↗CWE-288 Authentication bypass using an alternate path or channel
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Barracuda Networks | Barracuda Email Security Gateway (ESG) | 0 < 9.4.0.030 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
Nuclei Template
SCANNER AVAILABLE
EPSS Score
1.602%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Mandiant Inc. · Researcher · USA |
| Reserved | 2026-10-26T16:04:54 |
| Published | 2026-11-02T12:59:11 |
| Last Updated | 2026-11-10T20:58:24 |
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