Description
NVIDIA GPU Display Driver for Linux contains a vulnerability in the kernel mode layer where the size of an ioctl input buffer is not validated, allowing an unprivileged caller to trigger an out-of-bounds write in kernel memory. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering.
Published: 2026-09-30
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Apply Patch
AI Analysis

Impact

An out-of-bounds write is possible within the kernel-mode layer of NVIDIA’s GPU display driver for Linux when the ioctl input buffer size is not validated. The flaw permits an unprivileged user to corrupt kernel memory, with the documented potential for code execution, denial of service, privilege escalation, information disclosure, and data tampering. The weakness is classified as CWE‑787.

Affected Systems

The vulnerability affects NVIDIA drivers that include GeForce, RTX, Quadro, NVS, Tesla, Guest Driver, and the Virtual GPU Manager on Linux platforms. All listed NVIDIA GPU families are impacted, as referenced by the CNA vendors and products list.

Risk and Exploitability

The CVSS score of 7.8 indicates a high severity. The EPSS score is not available, so the exact probability of exploitation cannot be quantified. The flaw is not yet listed in the CISA KEV catalog. The likely attack vector is local; an unprivileged user running a crafted command can trigger the ioctl and exploit the memory corruption. Because the handler runs with kernel privileges, the exploitation path can elevate privileges or execute arbitrary code.

Generated by OpenCVE AI on September 30, 2026 at 18:55 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update to the latest NVIDIA GPU display driver for Linux that includes the patch for this kernel-mode out-of-bounds write.
  • If an immediate update is not possible, restrict access to the vulnerable ioctl by applying appropriate SELinux/AppArmor profiles or udev rules to prevent unprivileged processes from invoking the affected interface.
  • Monitor kernel logs and kernel crash dumps for signs of memory corruption or unexpected crashes, and quarantine affected systems if such events occur.

Generated by OpenCVE AI on September 30, 2026 at 18:55 UTC.

Tracking

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Advisories

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History

Thu, 01 Oct 2026 00:15:00 +0000

Type Values Removed Values Added
Title nvidia-driver: xorg-x11-drv-nvidia: nvidia-driver: privilege escalation via unvalidated ioctl buffer size
Metrics threat_severity

None

threat_severity

Important


Wed, 30 Sep 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Nvidia
Nvidia geforce
Nvidia guest Driver
Nvidia nvs
Nvidia quadro
Nvidia rtx
Nvidia tesla
Nvidia virtual Gpu Manager
Vendors & Products Nvidia
Nvidia geforce
Nvidia guest Driver
Nvidia nvs
Nvidia quadro
Nvidia rtx
Nvidia tesla
Nvidia virtual Gpu Manager

Wed, 30 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 30 Sep 2026 16:00:00 +0000

Type Values Removed Values Added
Description NVIDIA GPU Display Driver for Linux contains a vulnerability in the kernel mode layer where the size of an ioctl input buffer is not validated, allowing an unprivileged caller to trigger an out-of-bounds write in kernel memory. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering.
Weaknesses CWE-787
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Subscriptions

Nvidia Geforce Guest Driver Nvs Quadro Rtx Tesla Virtual Gpu Manager
cve-icon MITRE

Status: PUBLISHED

Assigner: nvidia

Published:

Updated: 2026-10-01T03:56:41.361Z

Reserved: 2026-05-19T19:55:46.481Z

Link: CVE-2026-47561

cve-icon Vulnrichment

Updated: 2026-09-30T17:59:34.032Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-30T16:17:24.693

Modified: 2026-10-01T04:18:16.450

Link: CVE-2026-47561

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-30T15:50:27Z

Links: CVE-2026-47561 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-30T21:30:17Z

Weaknesses