PoC Exploit Released for Windows Error Reporting ALPC Privilege Escalation

PoC for CVE-2026-20817 discloses a Windows Error Reporting ALPC privilege escalation that allows an authenticated low-privilege user to execute arbitrary commands as SYSTEM by abusing the SvcElevatedLaunch (method 0x0D) and supplying a shared-memory command line; the flaw affects Windows 10/11 and Server 2019/2022 prior to the January 2026 patch and organizations are advised to apply updates and monitor for suspicious WerFault.exe activity.