CISA-confirmed known exploited vulnerability

CVE-2019-1064

Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability

Microsoft · Windows

Vulnerability details

A privilege escalation vulnerability exists when Windows AppXSVC improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context.

Added to CISA KEV: 2022-03-15

Ransomware campaign use: Known

CISA due date: 2022-04-05

Defensive guidance from CISA

Apply updates per vendor instructions.

This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.

Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC

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