CVE-2023-26213: Barracuda t100b Firmware

High severity, CVSS 7.2. EPSS: 7.9% chance of exploitation in the next 30 days.

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. For example, a name field can contain :password and a password field can contain shell metacharacters.

Affected products

• Barracuda t100b Firmware: version 8.3.1 only
• Barracuda t193a Firmware: version 8.3.1 only
• Barracuda t200c Firmware: version 8.3.1 only
• Barracuda t400c Firmware: version 8.3.1 only
• Barracuda t600d Firmware: version 8.3.1 only
• Barracuda t900b Firmware: version 8.3.1 only
• Barracuda t93a Firmware: version 8.3.1 only

Published 2023-03-03. Last modified 2026-06-17.