Path Traversal in Barracuda Networks Spam & Virus Firewall
CVE-2010-20109
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
EPSS exploit prediction
EPSS: 0.012 (66.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Barracuda Networks Spam & Virus Firewall — versions 0
- Barracuda Networks SSL Vpn — versions 0
- Barracuda Networks Web Application Firewall — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.exploit-db.com/exploits/15130 (exploit)
- web.archive.org/web/20101004131244/http://secunia.com/advisories/41609/ (third-party-advisory)
- raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/… (exploit)
- www.vulncheck.com/advisories/barracuda-multiple-products-locale-path-traversal (third-party-advisory)
Frequently asked questions
- What is CVE-2010-20109?
- CVE-2010-20109 is a vulnerability in Barracuda Networks Spam & Virus Firewall, classified under Path Traversal. Published 2025-08-21.
- Is CVE-2010-20109 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.