# CVE-2026-111560: Barracuda appliance OS command injection in timezone field

Source: https://junglewise.ai/threats/cve-2026-111560-improper-neutralization-of-shell-metacharacters-in-the-timezone  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-02. Updated: 2026-11-02  
License: CC BY 4.0 with a link back

CVE-2026-111560 · Severity: critical · Exploited in the wild · Published 2026-11-02

Several Barracuda network appliances (email gateway, load balancer, firewall, web security gateway, message archiver, and control center) are vulnerable to command injection through their timezone configuration fields. An authenticated administrator can inject malicious commands that execute with root-level privileges, potentially giving an attacker complete control over the appliance and the systems it protects.

Vendors: [Barracuda](https://junglewise.ai/threats/vendors/barracuda).

## Quick answers

**Is CVE-2026-111560 exploited in the wild?** Yes. CVE-2026-111560 is known to be exploited in the wild, first recorded on 10 November 2026. Treat it as urgent.

**How severe is CVE-2026-111560?** Critical severity, published 2 November 2026.

**Which products and versions are affected?** Barracuda Email Security Gateway (ESG) <= 9.4.0.27; Barracuda Load Balancer Application Delivery Controller (ADC) <= 6.4.0; Barracuda Message Archiver (BMA) <= 5.5.4.0; Barracuda WAF Control Center (WCC) <= 2.2.1; and 2 more.

**Is there a fix for CVE-2026-111560?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-111560 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-111560?** Check whether you run Barracuda Email Security Gateway (ESG), Barracuda Load Balancer Application Delivery Controller (ADC), Barracuda Message Archiver (BMA) or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is an OS command injection (CWE-78) in the timezone configuration field affecting common Barracuda code shared across multiple products. The attack requires an authenticated administrator account but allows arbitrary OS command execution with root privileges once the malicious timezone value is processed by the system.

## Affected products

- 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

## Timeline

- 2026-10-15: disclosed: Reported by Barracuda
- 2026-11-02: advisory: CVE published and Mandiant advisory released

## References

- [https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0041.md](https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0041.md)
- [https://trust.barracuda.com/security/pre-authentication-authorization-bypass-command-injection](https://trust.barracuda.com/security/pre-authentication-authorization-bypass-command-injection)