CVE-2026-23307
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
can: ems_usb: ems_usb_read_bulk_callback(): check the proper length of a message
When looking at the data in a USB urb, the actual_length is the size of the buffer passed to the driver, not the transfer_buffer_length which is set by the driver as the max size of the buffer.
When parsing the messages in ems_usb_read_bulk_callback() properly check the size both at the beginning of parsing the message to make sure it is big enough for the expected structure, and at the end of the message to make sure we don't overflow past the end of the buffer for the next message.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.12%
- Percentil entre todas las CVEs puntuadas: 2
- Fecha de la puntuación: 6/10/2026
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).
Tecnologías afectadas (1)
CWE
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/1818974e1b5ef200e27f144c8cb8a246420bb54d
- https://git.kernel.org/stable/c/18f75b9cbdc3703f15965425ab69dee509b07785
- https://git.kernel.org/stable/c/1cf469026d4a2308eaa91d04dca4a900d07a5c2e
- https://git.kernel.org/stable/c/2833e13e2b099546abf5d40a483b4eb04ddd1f7b
- https://git.kernel.org/stable/c/38a01c9700b0dcafe97dfa9dc7531bf4a245deff
- https://git.kernel.org/stable/c/aed172a2e2330131f0977d2acd3ec8883f413ec1
- https://git.kernel.org/stable/c/c703bbf8e9b4947e111c88d2ed09236a6772a471
- https://git.kernel.org/stable/c/f10177e6c4575aedaea580ce67d792fab7a2235e
JSON original (NVD)
Mostrar
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