CVE-2026-26178
Received Received - Intake
Integer Truncation in Windows WARP Enables Local Privilege Escalation

Publication date: 2026-04-14

Last updated on: 2026-04-23

Assigner: Microsoft Corporation

Description
Integer size truncation in Windows Advanced Rasterization Platform (WARP) allows an unauthorized attacker to elevate privileges locally.
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Meta Information
Published
2026-04-14
Last Modified
2026-04-23
Generated
2026-06-16
AI Q&A
2026-04-14
EPSS Evaluated
2026-06-15
NVD
CVE-2026-26178
EUVD
EUVD-2026-22418
Affected Vendors & Products
Showing 21 associated CPEs
Vendor Product Version / Range
microsoft windows_10_1607 to 10.0.14393.9060 (exc)
microsoft windows_10_1607 to 10.0.14393.9060 (exc)
microsoft windows_10_1809 to 10.0.17763.8644 (exc)
microsoft windows_10_1809 to 10.0.17763.8644 (exc)
microsoft windows_10_21h2 to 10.0.19044.7184 (exc)
microsoft windows_10_21h2 to 10.0.19044.7184 (exc)
microsoft windows_10_21h2 to 10.0.19044.7184 (exc)
microsoft windows_10_22h2 to 10.0.19045.7184 (exc)
microsoft windows_10_22h2 to 10.0.19045.7184 (exc)
microsoft windows_10_22h2 to 10.0.19045.7184 (exc)
microsoft windows_11_23h2 to 10.0.22631.6936 (exc)
microsoft windows_11_23h2 to 10.0.22631.6936 (exc)
microsoft windows_11_24h2 to 10.0.26100.8246 (exc)
microsoft windows_11_24h2 to 10.0.26100.8246 (exc)
microsoft windows_11_25h2 to 10.0.26200.8246 (exc)
microsoft windows_11_25h2 to 10.0.26200.8246 (exc)
microsoft windows_server_2016 to 10.0.14393.9060 (exc)
microsoft windows_server_2019 to 10.0.17763.8644 (exc)
microsoft windows_server_2022 to 10.0.20348.5020 (exc)
microsoft windows_server_2022_23h2 to 10.0.25398.2274 (exc)
microsoft windows_server_2025 to 10.0.26100.32690 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-681 When converting from one data type to another, such as long to integer, data can be omitted or translated in a way that produces unexpected values. If the resulting values are used in a sensitive context, then dangerous behaviors may occur.
CWE-190 The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
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Executive Summary

This vulnerability is an integer size truncation issue in the Windows Advanced Rasterization Platform (WARP). It allows an unauthorized attacker to locally elevate their privileges on the affected system.

Impact Analysis

The vulnerability can allow an attacker to gain higher privileges on the system without authorization. This means the attacker could potentially execute actions or access data that normally require elevated permissions, leading to a compromise of system integrity, confidentiality, and availability.

Compliance Impact

The provided information does not specify how this vulnerability affects compliance with common standards and regulations such as GDPR or HIPAA.

Mitigation Strategies

To mitigate this vulnerability, apply the security updates provided by Microsoft for the Windows Advanced Rasterization Platform (WARP) as soon as they become available.

Ensure that your system is kept up to date with the latest patches to prevent unauthorized local privilege escalation.

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