# CVE-2026-47554: NVIDIA GPU Display Driver for Linux signature verification bypass

Source: https://junglewise.ai/threats/cve-2026-47554-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-2026-47554 · Severity: high · CVSS 7.1 · Published 2026-09-30

NVIDIA's GPU display driver for Linux contains a flaw in how it verifies cryptographic signatures in the kernel layer. Under memory pressure, the verification can be bypassed, allowing an attacker to cause system outages or modify data. This affects systems relying on the driver to manage NVIDIA graphics hardware.

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

## Quick answers

**Is CVE-2026-47554 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-47554 being exploited in the wild.

**How severe is CVE-2026-47554?** High severity, with a CVSS score of 7.1, published 30 September 2026.

**Which products and versions are affected?** NVIDIA GPU Display Driver for Linux.

**Is there a fix for CVE-2026-47554?** 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-2026-47554 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2026-47554?** Check whether you run Nvidia GPU Display Driver for Linux. 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 is an improper cryptographic signature verification issue in the kernel mode layer of NVIDIA's GPU display driver for Linux. Under memory pressure conditions, the signature verification mechanism can be bypassed, potentially allowing unauthorized code execution or data tampering. The attack vector is local, requiring some form of interaction with the affected system.

## Affected products

- NVIDIA GPU Display Driver for Linux

## 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-2026-47554](https://www.cve.org/CVERecord?id=CVE-2026-47554)

## Related threats

- [NVIDIA GPU Display Driver kernel mode driver authorization bypass](https://junglewise.ai/threats/cve-2026-47604-nvidia-gpu-display-driver-for-windows-and-linux-contains-a)
- [NVIDIA GPU Display Driver information disclosure in kernel mode driver](https://junglewise.ai/threats/cve-2026-47603-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 use-after-free in kernel module](https://junglewise.ai/threats/cve-2026-47598-nvidia-gpu-display-driver-for-linux-contains-a-vulnerability-in)
- [NVIDIA GPU Display Driver use-after-free in Resource Server](https://junglewise.ai/threats/cve-2026-47597-nvidia-gpu-display-driver-for-windows-and-linux-contains-a)