EUVD-2026-56499
GHSA-6m44-mfj9-ffjr
Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Local access with low-privilege user authentication required; no confidentiality impact per description and CVSS VC:N; high availability impact from driver crash DoS.
Primary rating from Vendor (intel).
CVSS VectorVendor: intel
Lifecycle Timeline
1DescriptionCVE.org
Out-of-bounds read for the Intel(R) NPU Driver for all versions within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not 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.
AnalysisAI
Out-of-bounds read in the Intel Neural Processing Unit (NPU) Driver across all versions exposes systems to local denial of service via a low-privilege authenticated attacker operating in Ring 3 (user application space). The CVSS 4.0 score of 6.9 reflects high availability impact with a local, low-complexity, no-interaction attack path, alongside minor integrity degradation. No public exploit code and no active exploitation (CISA KEV) have been identified at time of analysis.
Technical ContextAI
The Intel NPU Driver facilitates communication between user-space applications (Ring 3) and the Neural Processing Unit hardware used for AI/ML inference workloads on Intel platforms. CWE-125 (Out-of-Bounds Read) describes a condition where the driver reads memory beyond the intended buffer boundary - in this case within the user-mode driver layer - which can cause the driver or host process to crash, resulting in denial of service. The affected CPE cpe:2.3:a:n/a:intel(r)_npu_driver:*:*:*:*:*:*:*:* indicates the wildcard version range covers all released driver versions with no lower-bound exception. The tags include 'Buffer Overflow' and 'Information Disclosure,' which likely represent researcher annotations; the official description and CVSS confirm only DoS and low integrity impact with no confidentiality breach.
RemediationAI
Consult Intel Security Advisory intel-sa-01456 at https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01456.html for the patched driver version; an exact fixed version number is not independently verifiable from the provided reference data. As a compensating control pending driver update, restrict execution of untrusted or unvetted local applications on Intel NPU-equipped hosts, particularly in shared or multi-user environments. On Windows systems, application allowlisting (e.g., AppLocker or WDAC policies) can limit which user-space processes can interact with the NPU driver interface, reducing the exposure window. Note that disabling the NPU driver entirely will prevent AI/ML inference workloads from using NPU acceleration.
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Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Buffer Overflow
View allVendor StatusVendor
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External POC / Exploit Code
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