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.
Advisories

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Fixes

Solution

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Workaround

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History

Thu, 15 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
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.
Title Netgate pfSense CE 2.5.0 through 2.9.0 OS Command Injection via openvpn.learn-address.sh
First Time appeared Netgate
Netgate pfsense
Weaknesses CWE-78
CPEs cpe:2.3:a:netgate:pfsense:*:*:*:*:*:*:*:*
Vendors & Products Netgate
Netgate pfsense
References
Metrics cvssV3_1

{'score': 5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L'}

cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-15T19:48:58.697Z

Reserved: 2026-10-15T18:21:21.906Z

Link: CVE-2026-111225

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-15T19:17:35.230

Modified: 2026-10-15T19:17:35.230

Link: CVE-2026-111225

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses