CVE-2026-111219
Netgate pfSense CE hasta la versión 2.9.0 incluida contiene una vulnerabilidad de inyección de nuevas líneas en services_pppoe_edit.php que permite a los usuarios con privilegios inyectar entradas mpd.secret mediante campos POST de nombre de usuario no validados. Los atacantes con el privilegio PPPoE Server Edit pueden añadir una línea cuyo secreto comience por '!', lo que hace que mpd5 ejecute comandos como root cuando un cliente PPPoE se autentica.
Traducción automática del texto original de NVD (en inglés).
CVSS
- Puntuación base
- 7.5
- Versión
- 4.0
- Vector
- CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días
- 0.89 %
- Percentil entre todas las CVEs puntuadas
- 59
- Fecha de la puntuación
- 20/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1210Exploitation of Remote Serviceslateral movement85 % - Impacto principal
T1059Command and Scripting Interpreterexecution80 % - Impacto secundario
T1068Exploitation for Privilege Escalationprivilege escalation55 %
Vector AV:N/PR:H/UI:N implica red con privilegios (T1210); el texto indica inyección en mpd.secret que ejecuta comandos como root al autenticarse un cliente PPPoE.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-93
Referencias
Mostrar las 5 referencias
- https://abraxaslabs.tech/research/pfsense-ce-leftovers
- https://github.com/abraxas/pfsense-pppoe-secret-bang
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/vpn.inc#L272-L282
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/services_pppoe_edit.php#L141-L152
- https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-command-injection-via-pppoe-server-username
JSON original (NVD)
Mostrar
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"Automatable": "NOT_DEFINED",
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"valueDensity": "NOT_DEFINED",
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"vulnerabilityResponseEffort": "NOT_DEFINED",
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"collectionURL": "https://github.com",
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"published": "2026-10-15T19:17:34.357",
"references": [
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"tags": [
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"tags": [
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"weaknesses": [
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"description": [
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}
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"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"lastModified": "2026-10-20T15:37:57.990",
"configurations": [
{
"nodes": [
{
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