CVE-2026-43156
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
net: usb: pegasus: enable basic endpoint checking
pegasus_probe() fills URBs with hardcoded endpoint pipes without verifying the endpoint descriptors:
A malformed USB device can present these endpoints with transfer types that differ from what the driver assumes.
Add a pegasus_usb_ep enum for endpoint numbers, replacing magic constants throughout. Add usb_check_bulk_endpoints() and usb_check_int_endpoints() calls before any resource allocation to verify endpoint types before use, rejecting devices with mismatched descriptors at probe time, and avoid triggering assertion.
Leer descripción completaMostrar menos
Similar fix to - commit 90b7f2961798 ("net: usb: rtl8150: enable basic endpoint checking") - commit 9e7021d2aeae ("net: usb: catc: enable basic endpoint checking")
Detalles técnicos trazas, registros y código del informe original
- usb_rcvbulkpipe(dev, 1) for RX data - usb_sndbulkpipe(dev, 2) for TX data - usb_rcvintpipe(dev, 3) for status interrupts
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: 0.16%
- Percentil entre todas las CVEs puntuadas: 5
- 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/229dc9b9db475ac900182bafe258943e0e054c6d
- https://git.kernel.org/stable/c/26b3ec62fa1a94ac801feca47f040fc729b3c174
- https://git.kernel.org/stable/c/2705709f6574a088aab246af72fc95f2fea51484
- https://git.kernel.org/stable/c/35854ed5c40b02f95824e44398f9d2ba33727203
- https://git.kernel.org/stable/c/3d7e6ce34f4fcc7083510c28b17a7c36462a25d4
- https://git.kernel.org/stable/c/67ba6b13dbcaf45681fb6758794c5ac5fa589a6c
- https://git.kernel.org/stable/c/a3e64e950a3981a8199de9798f6d21261b959171
- https://git.kernel.org/stable/c/d2e7c898cc02dfe42443489a67a45ed616cb76e9
JSON original (NVD)
Mostrar
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