CVE-2010-20109 HIGH

CVE-2010-20109: Barracuda Spam & Virus Firewall "locale" Path Traversal

Vendor Barracuda Networks
Product Spam & Virus Firewall
Weakness CWE-22 · Path traversal
Published August 21, 2025
Last update May 26, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Barracuda products, confirmed in Spam & Virus Firewall, SSL VPN, and Web Application Firewall versions prior to October 2010, contain a path traversal vulnerability in the view_help.cgi endpoint. The locale parameter fails to properly sanitize user input, allowing attackers to inject traversal sequences and null-byte terminators to access arbitrary files on the underlying system. By exploiting this flaw, unauthenticated remote attackers can retrieve sensitive configuration files such as /mail/snapshot/config.snapshot, potentially exposing credentials, internal settings, and other critical data.

Key dates

02Disclosure timeline

August 21, 2025 CVE published
May 26, 2026 Record updated

Related vulnerabilities

04Related CVE