CVE-2026-111228 Netgate pfSense CE 2.7.1 through 2.9.0 CRLF Injection via services_unbound_advanced.php
Authenticated users can inject CRLF characters into Unbound configuration to override DNS records and forwarding settings for all clients.
- 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-2026-111228?
CVE-2026-111228 is a medium-severity 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 from 2.7.1 through 2.9.0 contains a CRLF injection vulnerability in services_unbound_advanced.php that allows authenticated users with DNS Resolver: Advanced privilege to inject Unbound directives. Attackers can embed CR/LF characters in the unvalidated sock_queue_timeout parameter, which is written raw into unbound.conf, to override local records and forwarding for all clients.
Weakness: CWE-93
Which versions are affected by CVE-2026-111228?
It affects 1 product.
Products include Pfsense Pfsense.
How do I fix CVE-2026-111228?
No fix has been published for CVE-2026-111228 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-111228 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111228 exists.
Other vulnerabilities in Netgate pfSense CE
Sources
Also known as GHSA-3pxq-gxxr-7p9c.