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TI-2026-83801 Aliases CVE-2026-111560GHSA-fq98-vw8w-5vf9

OS command injection in Barracuda appliances

Priority MEDIUM 40CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

Barracuda Email Security Gateway through 9.4.0.27, Barracuda Load Balancer ADC through 6.4.0, Barracuda Web Application Firewall through 11.0.1, Barracuda Web Security Gateway through 16.1.100.100, Barracuda Message Archiver through 5.5.4.0, and Barracuda WAF Control Center through 2.2.1 are affected. Improper neutralization of shell metacharacters in the timezone field (CWE-78) lets an authenticated administrator inject OS commands. The commands run as root when the crafted timezone value is processed.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00471 40th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Barracuda NetworksBarracuda Email Security Gateway (ESG)up to 9.4.0.27—No fix listedCNA
Barracuda NetworksBarracuda Load Balancer Application Delivery Controller (ADC)up to 6.4.0—No fix listedCNA
Barracuda NetworksBarracuda Web Application Firewall (WAF)up to 11.0.1—No fix listedCNA
Barracuda NetworksBarracuda Web Security Gateway (WSG)up to 16.1.100.100—No fix listedCNA
Barracuda NetworksBarracuda Message Archiver (BMA)up to 5.5.4.0—No fix listedCNA
Barracuda NetworksBarracuda WAF Control Center (WCC)up to 2.2.1—No fix listedCNA
  • Barracuda Email Security Gateway (ESG) VendorBarracuda Networks Affected up to 9.4.0.27 Fixed in — No fix listed CNA
  • Barracuda Load Balancer Application Delivery Controller (ADC) VendorBarracuda Networks Affected up to 6.4.0 Fixed in — No fix listed CNA
  • Barracuda Web Application Firewall (WAF) VendorBarracuda Networks Affected up to 11.0.1 Fixed in — No fix listed CNA
  • Barracuda Web Security Gateway (WSG) VendorBarracuda Networks Affected up to 16.1.100.100 Fixed in — No fix listed CNA
  • Barracuda Message Archiver (BMA) VendorBarracuda Networks Affected up to 5.5.4.0 Fixed in — No fix listed CNA
  • Barracuda WAF Control Center (WCC) VendorBarracuda Networks Affected up to 2.2.1 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Barracuda Email Security Gateway (ESG), Barracuda Load Balancer ADC, Barracuda Web Application Firewall, Barracuda Web Security Gateway, Barracuda Message Archiver, and Barracuda WAF Control Center.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Barracuda Email Security Gateway (ESG) — trust.barracuda.com/security/pre-authentication-authorizati…

    2 records Highest priority Priority MEDIUM 2 MEDIUM

    Other records, highest priority first

    • TI-2026-83805 Authentication bypass in Barracuda Email Security Gateway allows config restorePriority MEDIUM 49
    Show all 2 records → Advisory →

Timeline

  1. 2026-11-02 Threatist record created from CVE-2026-111560
  2. 2026-11-02 Alias added: GHSA-fq98-vw8w-5vf9
  3. 2026-11-02 CISA SSVC decision points changed
  4. 2026-11-02 Priority changed: MEDIUM → LOW
  5. 2026-11-03 CISA SSVC decision points changed
  6. 2026-11-04 Priority changed: LOW → MEDIUM

References

Advisory 2

  • TI-2023-02687 Remote Code injection in Barracuda Email Security Gateway KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-24469 Barracuda RMM < 2025.1.1 Service Center Absolute Path Traversal RCE CVSS 4.0CRITICAL 10.0
  • TI-2010-05064 Barracuda Spam & Virus Firewall "locale" Path Traversal CVSS 4.0HIGH 8.7
  • TI-2023-06497 Remote code execution (RCE) in Barracuda ESG Appliance CVSS 3.1CRITICAL 9.8
  • TI-2005-02695 img.pl in Barracuda Spam Firewall running firmware 3.1.16 and 3.1.17 allows remote… CVSS 2.0HIGH 7.5
  • TI-2025-24471 Barracuda RMM < 2025.1.1 Service Center .NET Remoting Deserialization RCE CVSS 4.0CRITICAL 10.0
See all 22 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences