Summary
Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
How could an attacker exploit this vulnerability?
An attacker who can execute code in a low-privilege AppContainer could exploit this vulnerability locally to escape the sandbox and elevate privileges on the affected system. No additional user interaction is required.
What privileges could be gained by an attacker who successfully exploited this vulnerability?
An attacker who successfully exploited this vulnerability could gain ELEVATED privileges, which may allow them to perform actions beyond their original permissions.
Security updates
10.0.17763.9487 — https://support.microsoft.com/help/5131085
10.0.20348.5870 — https://support.microsoft.com/help/5131090
10.0.19044.7846 — https://support.microsoft.com/help/5131096
10.0.26100.33822 — https://support.microsoft.com/help/5131080
10.0.26100.33730 — https://support.microsoft.com/help/5131077
10.0.26200.9974 — https://support.microsoft.com/help/5132061
10.0.26200.9911 — https://support.microsoft.com/help/5132043
10.0.22631.7711 — https://support.microsoft.com/help/5131087
10.0.28000.3501 — https://support.microsoft.com/help/5132059
Vulnerabilities 1
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High 8.8
Windows Input System Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Input System allows an authorized attacker to elevate privileges locally.
Revision history
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#1
Information published.
References
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CVE-2026-119916 Windows Input System Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-119916
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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