CVE-2021-34866

Estado: ModificadaAlta (7.8)—

This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel 5.14-rc3. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of eBPF programs. The issue results from the lack of proper validation of user-supplied eBPF programs, which can result in a type confusion condition. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel. Was ZDI-CAN-14689.

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: 0.97%
Percentil entre todas las CVEs puntuadas: 61
Fecha de la puntuación: 7/10/2026

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 (9)

Linux — Linux Kernel Netapp — H300e Firmware Netapp — H300s Firmware Netapp — H410c Firmware Netapp — H410s Firmware Netapp — H500e Firmware Netapp — H500s Firmware Netapp — H700e Firmware Netapp — H700s Firmware

CWE

CWE-843
CWE-843

Referencias

JSON original (NVD)

Mostrar

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