CVE-2026-116606

critical

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.

References

https://trust.barracuda.com/security/pre-authentication-authorization-bypass-command-injection

https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0042.md

https://thehackernews.com/2026/11/experts-demonstrate-barracuda-email.html

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-116606

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-115149

Details

Source: Mitre, NVD

Published: 2026-11-02

Updated: 2026-11-12

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 9.3

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

Severity: Critical

EPSS

EPSS: 0.08934