Bug 2514153 (CVE-2026-20908)

Summary: CVE-2026-20908 Intel NPU Driver: Intel NPU Driver for Windows: Denial of Service via time-of-check time-of-use race condition
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Intel NPU Driver for Windows. This time-of-check time-of-use (TOCTOU) race condition vulnerability allows an unprivileged, authenticated local attacker to cause a denial of service. The attack has high complexity and requires no user interaction. This could lead to a significant impact on the availability of the system.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-08-11 16:55:09 UTC 
Time-of-check time-of-use race condition for the Intel(R) NPU Driver for Windows for all versions within Ring 1: Device Drivers may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a high complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.