CVE-2026-83750: Windows Error Reporting Elevation of Privilege Vulnerability
Time-of-check time-of-use (toctou) race condition in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
Other sources
Windows Error Reporting Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
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Fixed in 10.0.19044.7807Patch KB5126657 - Upgrade
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Fixed in 10.0.26100.9711Patch KB5127648 - Upgrade
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Fixed in 10.0.26300.9711Patch KB5127648 - Upgrade
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Fixed in 10.0.26200.9711Patch KB5127648 - Upgrade
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Fixed in 10.0.14393.9612Patch KB5126868 - Upgrade
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Fixed in 6.3.9600.23470Patch KB5126836 - Upgrade
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Fixed in 6.2.9200.26434Patch KB5126835 - Upgrade
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Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
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Fixed in 10.0.28000.3231Patch KB5127646 - Upgrade
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Fixed in 10.0.22631.7652Patch KB5126653 - Upgrade
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Fixed in 10.0.20348.5761Patch KB5126655 - Upgrade
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Fixed in 10.0.17763.9376Patch KB5126651
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Systems running the listed Windows 10, Windows 11, or Windows Server versions are potentially affected. Exploitation is local, so the attacker must already have authorized access to the target system.
What level of access does an attacker need?
The attacker needs low-level privileges on the affected machine. No user interaction is required, but successful exploitation depends on winning a time-of-check time-of-use race condition.
What is the potential impact of successful exploitation?
A successful attacker can elevate privileges locally. The supplied vector indicates high impact to confidentiality, integrity, and availability.