CVE-2026-111560

OS Command Injection in Barracuda Appliances

CVSS 4.0 High 8.6Known exploited (CISA KEV)

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

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.

Key data

CVSS 4.0 High 8.6

Score published by Mandiant in the CVE record.

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

Attack vector: Network
The vulnerable component can be reached over a network, possibly from the Internet.
Attack complexity: Low
No measurable action is needed to get around the system's built-in security controls. The attack is repeatable.
Attack requirements: None
The attack works without any special deployment or execution conditions.
Privileges required: High
An account with significant privileges, such as an administrator, is needed.
User interaction: None
No action from any user is needed.
Vulnerable system: confidentiality: High
Serious or total effect on the secrecy of data.
Vulnerable system: integrity: High
Serious or total effect on the trustworthiness of data.
Vulnerable system: availability: High
Serious or total effect on availability.
Subsequent systems: confidentiality: None
No effect on other systems' data secrecy.
Subsequent systems: integrity: None
No effect on other systems' data trustworthiness.
Subsequent systems: availability: None
No effect on other systems' availability.

Metric	Value	What it means
Attack vector	Network	The vulnerable component can be reached over a network, possibly from the Internet.
Attack complexity	Low	No measurable action is needed to get around the system's built-in security controls. The attack is repeatable.
Attack requirements	None	The attack works without any special deployment or execution conditions.
Privileges required	High	An account with significant privileges, such as an administrator, is needed.
User interaction	None	No action from any user is needed.
Vulnerable system: confidentiality	High	Serious or total effect on the secrecy of data.
Vulnerable system: integrity	High	Serious or total effect on the trustworthiness of data.
Vulnerable system: availability	High	Serious or total effect on availability.
Subsequent systems: confidentiality	None	No effect on other systems' data secrecy.
Subsequent systems: integrity	None	No effect on other systems' data trustworthiness.
Subsequent systems: availability	None	No effect on other systems' availability.

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at first.org/cvss.

EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score: 0.01060 (1.1% probability)
Percentile: 64.8%
Scores of: Nov 10, 2026
Model: v2026.06.15

CISA Known Exploited Vulnerabilities

This CVE is listed in the CISA KEV catalog.

Name in the catalog: Barracuda Networks Multiple Products OS Command Injection Vulnerability
Added to the catalog: Nov 10, 2026
Federal due date: Nov 13, 2026

CISA assessment as of Nov 10, 2026

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Exploitation: Recorded by CISA as active
Automatable: no
Technical impact: total

Weakness (CWE)

CWE catalog version 5.0.

CWE-78Improper Neutralization of Special Elements used in an OS Command

Affected products

Products listed in the CVE record, as the CNA published them.

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

References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

github.com/mandiant/Vulnerability-Disclosures/blob/master/2…third-party-advisory
trust.barracuda.com/security/pre-authentication-authorizati…vendor-advisory

Timeline

ID reservedOct 16, 2026
Record publishedNov 2, 2026
Added to CISA KEVNov 10, 2026
Record last updatedNov 10, 2026

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About CubePath

CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection.

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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 23:43 UTC. Sources and licenses