CVE-2026-83693
CriticalCVSS 9.8Summary
Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.
Risk Assessment
An attacker can remotely execute malicious code, potentially leading to full system compromise and data confidentiality breach.
Recommendation
Install security updates for Windows Error Reporting and restrict access to error reporting services.
Other vulnerabilities in Windows Error Reporting
See all- CVE-2026-97798High
Improper neutralization of argument delimiters in a command ('argument injection') in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
- CVE-2026-97815Critical
Windows Error Reporting is affected by a heap-based buffer overflow vulnerability. This allows an unauthorized attacker to execute code over a network.
- CVE-2026-83748Critical
Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.
- CVE-2026-83519Critical
Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.
- CVE-2026-20817High
Improper handling of insufficient permissions in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
- CVE-2019-0863HighActively exploited
An elevation of privilege vulnerability in Windows Error Reporting (WER), due to improper file handling. A local attacker could exploit this to gain elevated privileges.
- CVE-2026-83996High
Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
- CVE-2026-69896High
Use after free in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
- CVE-2026-69684Medium
Generation of error message containing sensitive information in Windows Error Reporting allows an authorized attacker to disclose information locally.
- CVE-2026-69612High
Absolute path traversal in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS