CVE-2026-83658
Awaiting Analysis Awaiting Analysis - Queue

Improper Access Control in Windows Error Reporting

Publication date: 2026-10-13

Last updated on: 2026-10-16

Assigner: Microsoft Corporation

Description
Improper access control in Windows Error Reporting allows an authorized attacker to disclose information locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-10-13
Last Modified
2026-10-16
Generated
2026-10-19
AI Q&A
2026-10-14
EPSS Evaluated
2026-10-18
NVD
CVE-2026-83658
EUVD
EUVD-2026-99319

Affected Vendors & Products

Showing 14 associated CPEs
Vendor Product Version / Range
Microsoft Windows 10 Version 1809 10.0.17763.0
Microsoft Windows 10 Version 21H2 10.0.19044.0
Microsoft Windows 10 Version 22H2 10.0.19045.0
Microsoft Windows 11 version 23H2 10.0.22631.0
Microsoft Windows 11 Version 23H2 10.0.22631.0
Microsoft Windows 11 Version 24H2 10.0.26100.0
Microsoft Windows 11 Version 25H2 10.0.26200.0
Microsoft Windows 11 version 26H1 10.0.28000.0
Microsoft Windows 11 Version 26H2 10.0.26300.0
Microsoft Windows Server 2019 10.0.17763.0
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0
Microsoft Windows Server 2022 10.0.20348.0
Microsoft Windows Server 2025 10.0.26100.0
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is an improper access control issue in Windows Error Reporting. An authorized attacker with local access can exploit this to disclose sensitive information from the system.

Detection Guidance

This vulnerability involves improper access control in Windows Error Reporting. Detection may require monitoring for unauthorized access to error reporting data or unusual system behavior. Check Windows Event Viewer for suspicious entries related to error reporting or unauthorized access attempts.

Impact Analysis

An attacker with local access could read sensitive data on your system, such as files or system information, potentially leading to further attacks or data breaches.

Compliance Impact

This vulnerability could lead to unauthorized data disclosure, which may violate GDPR (data protection) and HIPAA (health information privacy) requirements if sensitive data is exposed.

Mitigation Strategies

Apply the latest Windows updates from Microsoft Update to patch the improper access control in Windows Error Reporting. Monitor Microsoft's security advisories for additional guidance.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-83658. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart