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Vulnerability record · CVE-2023-26213 · published 3 March 2023

CVE-2023-26213: Barracuda t100b firmware os command injection vulnerability

Barracuda · T100b Firmware

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.

7.2 CVSS 3.1 High EPSS 7.9% · top 5.5% CWE-78 · OS command injection
7.2CVSS 3.1 base score
7.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
7Affected product versions listed by NVD
8References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

7 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://seclists.org/fulldisclosure/2023/Mar/2 ExploitMailing ListThird Party Advisory
https://campus.barracuda.com/product/cloudgenwan/doc/96024723/release-notes-8-3-1/ Release Notes
https://sec-consult.com/vulnerability-lab/advisory/os-command-injection-in-barracuda-cloudgen-wan/ ExploitThird Party Advisory
https://www.barracuda.com/products/network-security/cloudgen-wan Product
http://seclists.org/fulldisclosure/2023/Mar/2 ExploitMailing ListThird Party Advisory
https://campus.barracuda.com/product/cloudgenwan/doc/96024723/release-notes-8-3-1/ Release Notes
https://sec-consult.com/vulnerability-lab/advisory/os-command-injection-in-barracuda-cloudgen-wan/ ExploitThird Party Advisory
https://www.barracuda.com/products/network-security/cloudgen-wan Product

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Source: NIST National Vulnerability Database (record CVE-2023-26213), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.