CVE-2026-111230 Netgate pfSense CE through 2.9.0 Local File Read via Dynamic DNS Update URL
Privileged users can read sensitive system files as root by manipulating Dynamic DNS update URLs, exposing configuration and password hashes.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-111230?
CVE-2026-111230 is a medium-severity path traversal vulnerability in Netgate pfSense CE, published on 15 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Netgate pfSense CE through 2.9.0 contains a local file read vulnerability that allows users with the Dynamic DNS client privilege to read files as root by setting a file:// custom Update URL in services_dyndns_edit.php. Attackers can set a non-matching Result Match string so _checkStatus() logs file contents such as /conf/config.xml or /etc/master.passwd to the system log.
Weakness: CWE-73
Which versions are affected by CVE-2026-111230?
It affects 1 product.
Products include Pfsense Pfsense.
How do I fix CVE-2026-111230?
No fix has been published for CVE-2026-111230 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-2026-111230 being exploited?
There is no known exploitation of CVE-2026-111230 in the wild and no public exploit code.
Other vulnerabilities in Netgate pfSense CE
Sources
Also known as GHSA-c3v6-7g6h-r7q8.