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Back to active CVEs
Critical · CVSS 9.3CVE-2026-116606

Authentication Bypass Allows Global Configuration Restore in Barracuda Email Security GatewayCVE-2026-116606

Answer in brief

CVE-2026-116606 records a Critical severity (CVSS 9.3) vulnerability in Authentication Bypass Allows Global Configuration Restore in Barracuda Email Security Gateway. The current sources do not mark it as known exploited. The current feed maps Barracuda Networks/Barracuda Email Security Gateway (ESG) (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 2, 2026Updated Nov 2, 2026Source checked Nov 2, 2026First seen by HOL Nov 2, 2026Material review Nov 2, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 9.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Barracuda Networks/Barracuda Email Security Gateway (ESG) (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Barracuda Networks/Barracuda Email Security Gateway (ESG)generic>=0 <9.4.0.0309.4.0.030

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Barracuda Networks/Barracuda Email Security Gateway (ESG).
  2. 2Review the reported fix. Update Barracuda Networks/Barracuda Email Security Gateway (ESG) to 9.4.0.030 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 2, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 2, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 2, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencetrust.barracuda.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-288
Source
CVE List V5
Source checked
Nov 2, 2026
References
2 linked sources
Open source record