# CVE-2026-116606

Pre-auth bypass in Barracuda Email Security Gateway allows config takeover.

- Page: https://www.vulneraibility.com/cve/CVE-2026-116606
- CVSS: 9.3
- Known exploited: not in CISA KEV as of our last sync
- Weakness: CWE-288
- Published: 2026-11-02

## Affected versions

- Barracuda Networks Barracuda Email Security Gateway (ESG): affected < 9.4.0.030

A version outside these ranges is not a statement that it is unaffected.

## Impact

Unauthenticated remote attacker can import crafted backup to modify global config, enabling administrative takeover and persistence.

## Action

Immediate action required

## Recommendation

Update to 9.4.0.030+, restrict management access, rotate admin credentials, audit configs.

## References

- [advisory] https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0042.md
- [advisory] https://trust.barracuda.com/security/pre-authentication-authorization-bypass-command-injection

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.