Summary
Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
What privileges could be gained by an attacker who successfully exploited this vulnerability?
An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
How could an attacker exploit this vulnerability?
An attacker could create malicious WebGL content that triggers an unsafe buffer copy inside D3D10Warp.dll(Direct3D 10 WARP (Windows Advanced Rasterization Platform)).
When a user’s browser processes this content, the attacker‑controlled parameters can cause a buffer overflow in the Windows graphics component, potentially enabling elevated privileges on the system.
According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
A user would need to visit a website or open content that uses WebGL features such as gl.texStorage3D or gl.texSubImage3D inside a Chromium‑based browser. No additional actions beyond loading this content are required.
Security updates
10.0.17763.8644 — https://support.microsoft.com/help/5082123
10.0.20348.5020 — https://support.microsoft.com/help/5082142
10.0.19044.7184 — https://support.microsoft.com/help/5082200
10.0.26100.32690 — https://support.microsoft.com/help/5082063
10.0.26200.8246 — https://support.microsoft.com/help/5083769
10.0.22631.6936 — https://support.microsoft.com/help/5082052
10.0.25398.2274 — https://support.microsoft.com/help/5082060
10.0.14393.9060 — https://support.microsoft.com/help/5082198
Vulnerabilities 1
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High 8.8
Windows Advanced Rasterization Platform Elevation of Privilege Vulnerability
Integer size truncation in Windows Advanced Rasterization Platform (WARP) allows an unauthorized attacker to elevate privileges locally.
Revision history
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#1
Information published.
References
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CVE-2026-26178 Windows Advanced Rasterization Platform Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26178
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss