CVE-2026-20817

Published Jan 13, 2026·Updated Jul 30, 2026

NVD Description

Improper handling of insufficient permissions or privileges in Windows Error Reporting allows an authorized attacker to elevate privileges locally.

Public Exploits & PoCs2 found

[POC] CVE-2026-20817 — CVE-2026-20817

Windows Error Reporting ALPC Elevation of Privilege (CVE-2026-20817) - Proof-of-Concept exploit demonstrating local privilege escalation via WER service.

[POC] CVE-2026-20817 — CVE-2026-20817

PoC for CVE-2026-20817

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

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