CVE-2026-111225
Pfsense: OS command injection
- Risk score
- 72/100
- CVSS
- 8.8 v3.1
- Exploit chance (30 days)
- 6.2%
- Published
- 15 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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…
- Affected
- Pfsense
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Story map
At a glance
Pfsense: Amber, patch this week. Netgate pfSense CE 2.7.0 through 2.9.0 contains an OS command injection vulnerability that allows authenticated users with QinQ edit privilege to run commands by storing an unvalidated parent interface name. Attackers can save a crafted 'if' value, then edit the QinQ entry so it is interpolated into ifconfig shell com…
The flaws
- CVE-2026-111225: OS command injection (CVSS 8.8 · EPSS 6%)
- CVE-2026-111214: OS command injection (CVSS 7.2 · EPSS 10%)
- CVE-2026-111218: OS command injection (CVSS 7.2 · EPSS 8%)
- CVE-2026-111217: OS command injection (CVSS 7.2 · EPSS 7%)
The fix
Fix: Apply the vendor's security update; see the linked advisory.
Who is exposed: Pfsense
Where it stands
- Public proof of concept
Connects to
- Same weakness: OS command injection (CWE-78). 305 other warnings in 30 days
- Same product: Earlier Pfsense warnings. 12 in the last 90 days
Why it is Amber
- CVSS 8.8 high
- Exploitation likely: EPSS 6.2% (top 6%)
References
- https://abraxaslabs.tech/research/pfsense-ce-leftovers
- https://github.com/abraxas/pfsense-ovpn-learn-cn
- 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
Original 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.
Last activity 15 Oct 2026. Patch Forecast updates every hour.