Barracuda vulnerabilities
We track 5 vulnerabilities in Barracuda products across 17 products. 5 are rated high or critical, and 3 have been exploited in real attacks. The most recent was published on November 2, 2026.
Latest Barracuda vulnerabilities
- 9.8 Critical severity
Barracuda Networks Email Security Gateway (ESG) Authentication Bypass Using an Alternate Path or Channel Exploited
An authentication bypass in Barracuda Email Security Gateway versions earlier than 9.4.0.030 allows an unauthenticated remote attacker to invoke a configuration-import function and restore a crafted, compatible backup archive, resulting in unauthorized modific
- 7.2 High severity
Barracuda Networks Multiple Products OS Command Injection Exploited
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 craft
- 9.8 Critical severity
Barracuda ESG Appliance: Use of Unmaintained Third Party Components
Use of a Third Party library produced a vulnerability in Barracuda Networks Inc. Barracuda ESG Appliance which allowed Parameter Injection.This issue affected Barracuda ESG Appliance, from 5.1.3.001 through 9.2.1.001, until Barracuda removed the vulnerable log
- 9.8 Critical severity
Barracuda Networks ESG Appliance Improper Input Validation Exploited
A remote command injection vulnerability exists in the Barracuda Email Security Gateway (appliance form factor only) product effecting versions 5.1.3.001-9.2.0.006. The vulnerability arises out of a failure to comprehensively sanitize the processing of .tar fi
- 7.2 High severity
T100b Firmware: Improper Neutralization of Special Elements used in an OS Command
On Barracuda CloudGen WAN Private Edge Gateway devices before 8 webui-sdwan-1089-8.3.1-174141891, an OS command injection vulnerability exists in /ajax/update_certificate - a crafted HTTP request allows an authenticated attacker to execute arbitrary commands.