CVE-2026-111560 — newly added to CISA KEV

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

01What CISA says about this vulnerability

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.

02Required action — verbatim from CISA

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.

03Notes & references

• github.com — https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026…
• trust.barracuda.com — https://trust.barracuda.com/security/pre-authentication-authorization-bypass-com…
• www.cisa.gov — https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-…

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
barracuda	email_security_gateway_300_firmware	< 9.4.0.029
barracuda	email_security_gateway_400_firmware	< 9.4.0.029
barracuda	email_security_gateway_600_firmware	< 9.4.0.029
barracuda	email_security_gateway_800_firmware	< 9.4.0.029
barracuda	email_security_gateway_900_firmware	< 9.4.0.029
barracuda	web_application_firewall	< 12.3.1.002
barracuda	web_security_gateway_firmware	< 15.0.0.009
barracuda	load_balancer_adc_firmware	< 6.4
barracuda	message_archiver_firmware	< 5.5.4.002

06Detection

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.