# CVE-2026-111560: OS Command Injection in Barracuda Appliances

Status: published. Published: 2026-11-02. Updated: 2026-11-02.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Barracuda Networks / Barracuda Email Security Gateway (ESG): ≥ 0; ≤ 9.4.0.27 (affected, custom). Source: CNA: Mandiant
- Barracuda Networks / Barracuda Load Balancer Application Delivery Controller (ADC): ≥ 0; ≤ 6.4.0 (affected, custom). Source: CNA: Mandiant
- Barracuda Networks / Barracuda Web Application Firewall (WAF): ≥ 0; ≤ 11.0.1 (affected, custom). Source: CNA: Mandiant
- Barracuda Networks / Barracuda Web Security Gateway (WSG): ≥ 0; ≤ 16.1.100.100 (affected, custom). Source: CNA: Mandiant
- Barracuda Networks / Barracuda Message Archiver (BMA): ≥ 0; ≤ 5.5.4.0 (affected, custom). Source: CNA: Mandiant
- Barracuda Networks / Barracuda WAF Control Center (WCC): ≥ 0; ≤ 2.2.1 (affected, custom). Source: CNA: Mandiant

## Severity and prioritization

- CVSS 4.0: 8.6 (high); 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; source: CNA: Mandiant

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-78

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0041.md (CNA: Mandiant; third-party-advisory)

- https://trust.barracuda.com/security/pre-authentication-authorization-bypass-command-injection (CNA: Mandiant; vendor-advisory)

## Provenance

- CNA: Mandiant: https://www.cve.org/CVERecord?id=CVE-2026-111560; retrieved 2026-11-02; source updated 2026-11-02

Revision: 48f05e6ac145a62f6a3bcf5e55f237695844793b9f84718a8c02a838568255dd

Canonical: https://y2.dev/cve/CVE-2026-111560