CVE-2026-111219
Netgate pfSense CE through 2.9.0 Command Injection via PPPoE Server Username
CVSS Score
6.6
EPSS Score
0.0%
EPSS Percentile
0th
Netgate pfSense CE through 2.9.0 contains a newline injection vulnerability in services_pppoe_edit.php that allows privileged users to inject mpd.secret entries via unvalidated username POST fields. Attackers with the PPPoE Server Edit privilege can add a line whose secret begins with '!', making mpd5 run commands as root when a PPPoE client authenticates.
| CWE | CWE-93 |
| Vendor | netgate |
| Product | pfsense ce |
| Published | Oct 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Netgate / pfSense CE
0 ≤ 2.9.0
References
github.com: https://github.com/abraxas/pfsense-pppoe-secret-bang abraxaslabs.tech: https://abraxaslabs.tech/research/pfsense-ce-leftovers github.com: https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/vpn.inc#L272-L282 github.com: https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/services_pppoe_edit.php#L141-L152 vulncheck.com: https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-command-injection-via-pppoe-server-username
Credits
Abraxas Labs