CVE-2026-111560: Barracuda Networks Multiple Products OS Command Injection Vulnerability
Vulnerability summary
CVE-2026-111560 is a high (CVSS 8.6) vulnerability in Barracuda Networks Multiple Products. It is known to be exploited: CISA lists it, first on 10-11-2026. EPSS estimates a 1.06% chance of exploitation in the next 30 days, higher than 64.8% of scored vulnerabilities.
Listed as exploited by CISA (10-11-2026)
Source freshness unavailable
How is this decided?Timeline
- 02-11-2026PublishedVulnerability first disclosed.
- 10-11-2026Added to CISA KEVExploitedBarracuda Networks Multiple Products OS Command Injection Vulnerability
- 10-11-2026Last modifiedVulnerability information updated.
- 13-11-2026CISA remediation dueUpcomingApply mitigations per vendor instructions.
Description
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.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST8.6HighCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS trend
Probability
1.06%
Chance of exploitation in the next 30 days
Percentile
65%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
Known exploited
Compare KEV catalogs- Added
- 10-11-2026
- Federal due date
- 13-11-2026
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
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. trust.barracuda.com/security/pre-authentication-authorization-bypass-command-injection github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0041.md nvd.nist.gov/vuln/detail/CVE-2026-111560
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Barracuda networks6 products
- 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
- barracuda web application firewall (waf)≤ 11.0.1
1 vendor · 6 products
References
3 links- github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0041.mdThird Party Advisory