CVE-2026-116606 Barracuda Email Security Gateway - Authentication Bypass

Barracuda Email Security Gateway < 9.4.0.030 contains an authentication bypass caused by improper access control in configuration-import function, letting unauthenticated remote attackers modify global configuration, exploit requires crafted backup archive.

CVSS base score 9.3 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Access Control, Data Tampering
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2 November 2026
Updated
3 November 2026
Weakness
CWE-288

Vendor fix

Update to version 9.4.0.030 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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