CVE-2026-20817
HighCVSS 7.8Exploitation Probability (EPSS)
Very high risk92th percentile - higher than 92% of all known CVEs
Summary
Improper handling of insufficient permissions in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker with appropriate permissions may gain higher privileges in the system, potentially leading to serious security breaches.
Recommendation
It is recommended to monitor and restrict access to Windows Error Reporting and to regularly update the system to patch this vulnerability.
Other vulnerabilities in Windows Error Reporting
See all- 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.
- CVE-2026-69513High
Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
- CVE-2026-69482High
Creation of temporary file in directory with insecure permissions in Windows Error Reporting allows an authorized attacker to perform tampering locally.
- CVE-2026-69462High
Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges over a network.
- CVE-2026-69450High
Out-of-bounds read in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
- CVE-2026-69436High
Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
- CVE-2026-69433High
Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Improper handling of insufficient permissions or privileges in Windows Error Reporting allows an authorized attacker to elevate privileges locally.