CVE-2026-54228

Estado: Pendiente de análisisAlta (7.8)—

A time-of-check time-of-use (TOCTOU) race condition was found in the abrt-dbus D-Bus service's SetElement method. Between dump directory creation and post-create event execution, any local user can call SetElement to write arbitrary text files into the root-owned dump directory, bypassing package validation and allowing crashes of unpackaged binaries to survive post-create processing.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 7.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.13%
Percentil entre todas las CVEs puntuadas: 2
Fecha de la puntuación: 5/10/2026

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.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation85 %
Impacto principalT1565.001 Stored Data Manipulationimpact75 %
Impacto secundarioT1078.003 Local Accountsstealth · persistence · privilege escalation · initial access65 %

TOCTOU en servicio D-Bus con privilegios elevados (root) accesible por usuario local sin interacción. La vulnerabilidad permite escribir ficheros arbitrarios en directorios propiedad de root, escalando privilegios (T1068). El atacante manipula datos de crash y elude validación (T1565.001), potencial

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

User Account Management Threat Intelligence Program Restrict File and Directory Permissions Privileged Account Management Password Policies Remote Data Storage

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Abrt — Abrt-dbus^AI

CWE

CWE-367
CWE-367

Referencias

JSON original (NVD)

Mostrar

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      "value": "A time-of-check time-of-use (TOCTOU) race condition was found in the abrt-dbus D-Bus service's SetElement method. Between dump directory creation and post-create event execution, any local user can call SetElement to write arbitrary text files into the root-owned dump directory, bypassing package validation and allowing crashes of unpackaged binaries to survive post-create processing."
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      "lang": "es",
      "value": "Se encontró una condición de carrera de tiempo de verificación y tiempo de uso (TOCTOU) en el método SetElement del servicio D-Bus abrt-dbus. Entre la creación del directorio de volcado y la ejecución del evento post-creación, cualquier usuario local puede llamar a SetElement para escribir archivos de texto arbitrarios en el directorio de volcado propiedad de root, eludiendo la validación del paquete y permitiendo que los fallos de binarios no empaquetados sobrevivan al procesamiento post-creación."
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