# CVE-2026-47591: NVIDIA GPU Display Driver for Linux memory protection bypass

Source: https://junglewise.ai/threats/cve-2026-47591-nvidia-gpu-display-driver-for-linux-contains-a-vulnerability-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-30. Updated: 2026-09-30  
License: CC BY 4.0 with a link back

CVE-2026-47591 · Severity: high · CVSS 7.8 · Published 2026-09-30

NVIDIA's GPU display driver for Linux contains a flaw that allows unprivileged users to write to memory regions that should be read-only, bypassing kernel-level memory protections. An attacker exploiting this could execute arbitrary code, crash the system, gain administrative privileges, steal sensitive data, or modify system files.

Technologies: [Nvidia GPU Display Driver](https://junglewise.ai/threats/technologies/gpu-display-driver). Vendors: [Nvidia](https://junglewise.ai/threats/vendors/nvidia).

## Quick answers

**Is CVE-2026-47591 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-47591 being exploited in the wild.

**How severe is CVE-2026-47591?** High severity, with a CVSS score of 7.8, published 30 September 2026.

**Which products and versions are affected?** Nvidia GPU Display Driver <UNKNOWN>.

**Is there a fix for CVE-2026-47591?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-47591 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2026-47591?** Check whether you run Nvidia GPU Display Driver at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability exists in the kernel mode layer of the GPU display driver where improper authorization checks fail to enforce read-only memory protection. An unprivileged local user can bypass these protections and gain write access to restricted memory regions. Successful exploitation enables code execution, privilege escalation, denial of service, information disclosure, and data tampering.

## Affected products

- NVIDIA GPU Display Driver <UNKNOWN>

## Timeline

- 2026-09-30: disclosed

## References

- [https://github.com/NVIDIA/product-security/tree/main/2026/5861](https://github.com/NVIDIA/product-security/tree/main/2026/5861)
- [https://www.cve.org/CVERecord?id=CVE-2026-47591](https://www.cve.org/CVERecord?id=CVE-2026-47591)

## Related threats

- [NVIDIA GPU Display Driver pointer dereference in kernel mode](https://junglewise.ai/threats/cve-2026-47602-nvidia-gpu-display-driver-for-windows-and-linux-contains-a)
- [NVIDIA GPU Display Driver DMA-BUF privilege escalation](https://junglewise.ai/threats/cve-2026-47601-nvidia-gpu-display-driver-for-windows-and-linux-contains-a)
- [NVIDIA GPU Display Driver kernel mode error-handling code execution](https://junglewise.ai/threats/cve-2026-47600-nvidia-gpu-display-driver-for-windows-and-linux-contains-a)
- [NVIDIA GPU Display Driver for Linux DMA memory access vulnerability](https://junglewise.ai/threats/cve-2026-47599-nvidia-gpu-display-driver-for-linux-contains-a-vulnerability-in)
- [NVIDIA GPU Display Driver for Linux memory permissions vulnerability](https://junglewise.ai/threats/cve-2026-47596-nvidia-gpu-display-driver-for-linux-contains-a-vulnerability-in)