---
id: CVE-2026-111560
title: OS Command Injection in Barracuda Appliances
summary: >-
  Improper neutralization of shell metacharacters in the timezone configuration
  field in certain Barracuda appliance products using common Barracuda code
  allows an authenticated administrator to inject OS commands that execute with
  root pr…
severity: high
cvss: 8.6
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-78
vendor: Barracuda Networks
product: Barracuda Email Security Gateway (ESG)
affected:
  - barracuda_email_security_gateway_esg <= 9.4.0.27
  - barracuda_load_balancer_application_delivery_controller_adc <= 6.4.0
  - barracuda_web_application_firewall_waf <= 11.0.1
  - barracuda_web_security_gateway_wsg <= 16.1.100.100
  - barracuda_message_archiver_bma <= 5.5.4.0
  - barracuda_waf_control_center_wcc <= 2.2.1
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-11-02T00:00:00+00:00'
published: '2026-11-02'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T04:55:20.131Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111560'
references:
  - url: >-
      https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0041.md
  - url: >-
      https://trust.barracuda.com/security/pre-authentication-authorization-bypass-command-injection
tags:
  - cve.org
epss: 0.00471
epssPercentile: 0.40844
ingestedAt: '2026-11-05T19:30:42.893Z'
---

## Overview

Improper neutralization of shell metacharacters in the timezone configuration field in certain Barracuda appliance products using common Barracuda code allows an authenticated administrator to inject OS commands that execute with root privileges when the crafted timezone value is subsequently processed.

## Affected

- `barracuda_email_security_gateway_esg <= 9.4.0.27`
- `barracuda_load_balancer_application_delivery_controller_adc <= 6.4.0`
- `barracuda_web_application_firewall_waf <= 11.0.1`
- `barracuda_web_security_gateway_wsg <= 16.1.100.100`
- `barracuda_message_archiver_bma <= 5.5.4.0`
- `barracuda_waf_control_center_wcc <= 2.2.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.