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HIGH Actively exploited CWE-78

CVE-2026-111560

OS Command Injection in Barracuda Appliances

Barracuda Networks·Multiple Products

8.6/ 10
CVSS 4.0
High severity
9.1%
EPSS exploit odds
Chance of exploitation in the next 30 days
Higher than 95% of all CVEs
Listed
CISA KEV catalog
Added
Nov 10, 2026
Fix due
Nov 13, 2026
Ransomware
Not known
Timeline
Published
Nov 2, 2026
Updated
Nov 11, 2026
First covered
Nov 4, 2026
Latest story
1 week ago

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 privileges when the crafted timezone value is subsequently processed.

CWE-78Improper neutralization of special elements used in an OS command ('OS command injection')

Attack profile

Attack vectorNetwork
ComplexityLow
RequirementsNone
PrivilegesHigh
User interactionNone
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
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

CISA required action

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Affected products

  • Barracuda Networks Barracuda Email Security Gateway (ESG)up to 9.4.0.27
  • Barracuda Networks Barracuda Load Balancer Application Delivery Controller (ADC)up to 6.4.0
  • Barracuda Networks Barracuda Web Application Firewall (WAF)up to 11.0.1
  • Barracuda Networks Barracuda Web Security Gateway (WSG)up to 16.1.100.100
  • Barracuda Networks Barracuda Message Archiver (BMA)up to 5.5.4.0
  • Barracuda Networks Barracuda WAF Control Center (WCC)up to 2.2.1

References

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