CVE-2026-53400
Estado: ModificadaAlta (7.8)—
In the Linux kernel, the following vulnerability has been resolved:
i2c: core: fix adapter registration race
Adapters can be looked up based on their id using i2c_get_adapter() which takes a reference to the embedded struct device.
Make sure that the adapter (including its struct device) has been initialised before adding it to the IDR to avoid accessing uninitialised data which could, for example, lead to NULL-pointer dereferences or use-after-free.
Note that the i2c-dev chardev, which is registered from a bus notifier, currently uses i2c_get_adapter() so the adapter needs to be added to the IDR before registration.
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: 0.10%
- Percentil entre todas las CVEs puntuadas: 1
- 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.
- Explotación
T1068Exploitation for Privilege Escalationprivilege escalation85 %
Vulnerabilidad de race condition (CWE-362) en kernel Linux que permite escalada de privilegios local sin interacción (PR:L, UI:N, AV:L); acceso a memoria uninicializada podría causar ejecución de código con privilegios elevados.
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-362
Referencias
- https://git.kernel.org/stable/c/1febb174815bcae56d73587e99e8f87e02f0784d
- https://git.kernel.org/stable/c/2e57c788e71f1763445f812eba4e0b4a2fbd0646
- https://git.kernel.org/stable/c/6a946038f2a5a8c29048c6af369d4e391448a5c5
- https://git.kernel.org/stable/c/78793c75dc6d0ff2e4d50ad617349b328a99054e
- https://git.kernel.org/stable/c/a4365bc41baaf67f3a5aa8556d23544e6ec7480a
- https://git.kernel.org/stable/c/a4c8094bbf4c6fa68b17e3b16f6a0a1b7a14f3e0
- https://git.kernel.org/stable/c/ba14d7cf2fe7284610a29854bdff22b2537d3ce6
- https://git.kernel.org/stable/c/da9d8d9711f78deebc202d0cffcf577e45ee8621
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
JSON original (NVD)
Mostrar
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