High MSRC-CVE-2026-83758 1 CVE

Windows Error Reporting Remote Code Execution Vulnerability

Published Oct 13, 2026 · Updated Nov 10, 2026 · Revision 2

Vendor: Microsoft

Summary

Impact: Remote Code Execution. Microsoft rating: Important. Not known to be exploited — Exploitation Unlikely. Customer action: Required.

Details

Security updates
6.2.9200.26434 — https://support.microsoft.com/help/5126835
6.3.9600.23470 — https://support.microsoft.com/help/5126836
10.0.14393.9612 — https://support.microsoft.com/help/5126868
10.0.17763.9376 — https://support.microsoft.com/help/5126651
10.0.19044.7807 — https://support.microsoft.com/help/5126657
10.0.20348.5761 — https://support.microsoft.com/help/5126655
10.0.22631.7652 — https://support.microsoft.com/help/5126653
10.0.26100.9711 — https://support.microsoft.com/help/5127648
10.0.26100.33650 — https://support.microsoft.com/help/5126646
10.0.28000.3231 — https://support.microsoft.com/help/5127646

Vulnerabilities 1

High 7.8

CVE-2026-83758

Windows Error Reporting Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to execute code locally.

Microsoft Windows Server 2019 Windows Server 2019 (Server Core installation) Windows 10 Version 1809 Windows

Oct 13, 2026

Revision history

2026-11-10 #2
Updated an acknowledgement. This is an informational change only.
2026-10-13 #1
Information published.

References

CVE-2026-83758 Windows Error Reporting Remote Code Execution Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83758
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss