CVE-2026-83826: Windows Error Reporting Elevation of Privilege Vulnerability
Untrusted pointer dereference 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
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.3231Patch KB5127646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26300.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7652Patch KB5126653 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9711Patch KB5127648
Event History
Frequently Asked Questions
Who can exploit this issue?
An attacker must already be authorized on the affected Windows system and able to execute locally. The provided data does not indicate that remote exploitation or user interaction is required.
What is the likely impact of successful exploitation?
Successful exploitation can elevate the attacker’s privileges on the local system. The severity vector indicates high impact to confidentiality, integrity, and availability.
Which systems are identified as affected?
The listed affected products are Microsoft Windows 11 and Microsoft Windows Server 2025. No specific editions, builds, or update levels are provided.