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CVE-2026-24191 NVIDIA CVE debrief

A time-of-check time-of-use (TOCTOU) vulnerability exists in NVIDIA Display Driver for Windows. The flaw stems from a race condition between when a resource is checked and when it is used, allowing an attacker to manipulate the resource state between these two operations. Successful exploitation could result in denial of service, privilege escalation, information disclosure, data tampering, or code execution. The vulnerability requires local access with low privileges, though no user interaction is needed. The attack complexity is rated as high, indicating that successful exploitation may require specialized conditions or timing. The scope is changed, meaning the vulnerable component impacts resources beyond its security boundary.

Vendor
NVIDIA
Product
GeForce
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-26
Original CVE updated
2026-05-26
Advisory published
2026-05-26
Advisory updated
2026-05-26

Who should care

Organizations running NVIDIA Display Driver on Windows workstations or servers, particularly those with multi-user environments or where untrusted users have local access. System administrators responsible for graphics driver security, endpoint security teams, and organizations with strict privilege separation requirements should prioritize this vulnerability.

Technical summary

This vulnerability is a classic TOCTOU race condition (CWE-367) in the NVIDIA Display Driver for Windows. The driver fails to properly synchronize access between the time a security check is performed and the time the protected resource is accessed. An attacker with local low-privilege access can exploit this timing window to substitute or modify the target resource, leading to arbitrary code execution with elevated privileges. The high attack complexity reflects the precision timing required, but the changed scope indicates that exploitation can affect resources beyond the vulnerable driver component itself. The CVSS score of 7.8 reflects high impacts across confidentiality, integrity, and availability with a local attack vector.

Defensive priority

HIGH

Recommended defensive actions

  • Apply NVIDIA security updates as referenced in the vendor security bulletin once available
  • Monitor NVIDIA security advisories for driver update release timing
  • Review systems running NVIDIA Display Driver on Windows for unauthorized local access
  • Implement principle of least privilege to limit local attack surface
  • Consider temporary workarounds such as restricting local user account permissions if updates are not immediately available
  • Monitor for anomalous driver-related activity or unexpected privilege escalations on affected systems

Evidence notes

The vulnerability is classified as CWE-367 (Time-of-check Time-of-use Race Condition). CVSS 3.1 vector: AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H. The NVD entry shows vulnStatus as 'Undergoing Analysis' as of the source publication date.

Official resources

NVIDIA disclosed this vulnerability via their Product Security Incident Response Team (PSIRT) and published security guidance on their customer support portal. The vulnerability was added to the National Vulnerability Database on May 26, 6