CVE-2026-111225
CVE-2026-111225 · Netgate pfSense CE 2.5.0 through 2.9.0 OS Command Injection via openvpn.learn-address.sh
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 2.3 · Low · EPSS 6.2%
- Published
- Updated
Affected products and versions
pfsense ce
- Versions
- ≥ 2.5.0, ≤ 2.9.0: Affected (semver)
No fix published
Original sources
- https://github.com/abraxas/pfsense-ovpn-learn-cn
- https://abraxaslabs.tech/research/pfsense-ce-leftovers
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/sbin/openvpn.learn-address.sh#L57-L62
- https://www.vulncheck.com/advisories/netgate-pfsense-ce-2.5.0-through-2.9.0-os-command-injection-via-openvpn-learn-address-sh
- https://nvd.nist.gov/vuln/detail/CVE-2026-111225