CVE-2010-20109 Barracuda Spam & Virus Firewall "locale" Path Traversal
Unauthenticated attackers can exploit a path traversal flaw in Barracuda appliances to read arbitrary files, exposing sensitive configuration data and credentials.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2010-20109?
CVE-2010-20109 is a high-severity path traversal vulnerability in Barracuda Networks SSL VPN, published on 21 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-22
Which versions are affected by CVE-2010-20109?
How do I fix CVE-2010-20109?
No fix has been published for CVE-2010-20109 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2010-20109 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-20109 exists.
Public exploit code: 1 Metasploit module.
Sources
Also known as GHSA-f6fv-779g-j5qr.