CVE-2026-111225 Netgate pfSense CE 2.5.0 through 2.9.0 OS Command Injection via openvpn.learn-address.sh
Authenticated VPN clients can execute arbitrary commands as the unbound user via shell metacharacters in certificate names when DNS Resolver is enabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-111225?
CVE-2026-111225 is a low-severity command injection vulnerability in Netgate pfSense CE, published on 15 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Netgate pfSense CE 2.5.0 through 2.9.0 contains an OS command injection vulnerability in openvpn.learn-address.sh that allows authenticated VPN clients to execute commands as the unbound user. Attackers can embed shell metacharacters in the certificate common name or username, which is interpolated unquoted into su -c strings, when DNS Resolver client registration is enabled.
Weakness: CWE-78
Which versions are affected by CVE-2026-111225?
It affects 1 product.
Products include Pfsense Pfsense.
How do I fix CVE-2026-111225?
No fix has been published for CVE-2026-111225 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-111225 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111225 exists.
Other vulnerabilities in Netgate pfSense CE
Sources
Also known as GHSA-643j-4p8v-85c8.