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CVE-2026-47563

xorg-x11-drv-nvidia: xorg-x11-drv-nvidia: Privilege escalation via NULL pointer dereference in kernel mode layer

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Severity

Important

Red Hat Product Security

7.8

CVSS 3.1

Review impact separately from score.

Published · October 1, 2026

Updated · October 31, 2026

Description

A flaw was found in xorg-x11-drv-nvidia. A local user can trigger an invalid memory access (NULL pointer dereference) in the driver's kernel mode layer. A successful exploit could allow an attacker to execute arbitrary code with elevated system privileges, access sensitive information, or cause a denial of service (DoS) by crashing the system.

Statement

This vulnerability is rated as an Important impact because an authenticated local attacker could trigger a kernel-level NULL dereference to gain administrative privileges or cause a complete system crash, resulting in full compromise of system integrity and availability. Red Hat Enterprise Linux releases are not affected because the vulnerable code base is not present in supported products. Furthermore, proprietary NVIDIA display drivers are not deployed in standard installations and require explicit manual configuration alongside compatible hardware.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-476 · NULL Pointer Dereference