What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.7 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-08-21 · updated 2026-06-16
• Weakness: CWE-22

Description

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.

Affected products

• Barracuda Networks Spam & Virus Firewall: through 4.1.1.021
• Barracuda Networks SSL VPN: through 2010-10
• Barracuda Networks Web Application Firewall: through 2010-10

References

• https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/scanner/http/barracuda_directory_traversal.rb
• https://web.archive.org/web/20101004131244/http://secunia.com/advisories/41609/
• https://www.exploit-db.com/exploits/15130
• https://www.vulncheck.com/advisories/barracuda-multiple-products-locale-path-traversal

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