FAQ
What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
MSRC compact vulnerability detail
CVE-2026-20817 · Windows Error Reporting Service Elevation of Privilege Vulnerability
Improper handling of insufficient permissions or privileges in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
Signals
Windows Error Reporting
Elevation of Privilege
Exploited: No
Publicly disclosed: No
Exploitability: Exploitation More Likely
CWE
Patch Diff
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Resolved binary override
Use this when the MSRC module name cannot be mapped automatically or the resolved binary looks wrong.
Description
Improper handling of insufficient permissions or privileges in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
FAQ / Articles
Windows Error Reporting Elevation of Privilege Vulnerability
Improper handling of insufficient permissions or privileges in Windows Error Reporting allows an authorized attacker to elevate privileges locally.