# CVE-2026-24191: NVIDIA Display Driver TOCTOU race condition in Windows

Source: https://junglewise.ai/threats/cve-2026-24191-nvidia-display-driver-toctou-race-condition-in-windows  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-26. Updated: 2026-05-26  
License: CC BY 4.0 with a link back

CVE-2026-24191 · Severity: high · CVSS 7.8 · Published 2026-05-26

The NVIDIA Display Driver for Windows contains a security flaw that could allow a user already on the system to gain higher levels of access. This driver is essential software that allows the Windows operating system to communicate with NVIDIA graphics hardware. If exploited, an attacker could potentially take full control of the computer, access sensitive data, or cause the system to crash.

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

## Quick answers

**Is CVE-2026-24191 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-24191 being exploited in the wild.

**How severe is CVE-2026-24191?** High severity, with a CVSS score of 7.8, published 26 May 2026.

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

**Is there a fix for CVE-2026-24191?** 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-2026-24191 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2026-24191?** Check whether you run Nvidia Display Driver. 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

A Time-of-Check Time-of-Use (TOCTOU) race condition vulnerability (CWE-367) exists in the NVIDIA Display Driver for Windows. An attacker with local user access can exploit this race condition during the driver's validation of a resource, modifying the resource after it has been checked but before it is used. Successful exploitation requires high attack complexity due to the timing requirements but can result in a scope cross (S:C), allowing for local privilege escalation, arbitrary code execution, information disclosure, or denial of service. Users are advised to refer to NVIDIA advisory 5821 for specific driver version updates and patches.

## Affected products

- NVIDIA Display Driver for Windows

## Timeline

- 2026-05-26: disclosed: Initial publication of the CVE record and NVD entry.

## References

- [https://nvidia.custhelp.com/app/answers/detail/a_id/5821](https://nvidia.custhelp.com/app/answers/detail/a_id/5821)
- [https://www.cve.org/CVERecord?id=CVE-2026-24191](https://www.cve.org/CVERecord?id=CVE-2026-24191)

## Related threats

- [NVIDIA Display Driver for Linux improper input validation in UVM](https://junglewise.ai/threats/cve-2026-24195-nvidia-display-driver-for-linux-improper-input-validation-in-uvm)
- [NVIDIA Display Driver out-of-bounds write in Windows and Linux](https://junglewise.ai/threats/cve-2026-24193-nvidia-display-driver-out-of-bounds-write-in-windows-and-linux)
- [NVIDIA Display Driver improper access control in kernel mode layer](https://junglewise.ai/threats/cve-2026-24190-nvidia-display-driver-improper-access-control-in-kernel-mode)
- [NVIDIA Display Driver for Linux use-after-free](https://junglewise.ai/threats/cve-2026-24187-nvidia-display-driver-for-linux-use-after-free)
- [NVIDIA Display Driver improper locking denial of service](https://junglewise.ai/threats/cve-2026-24182-nvidia-display-driver-improper-locking-denial-of-service)