CVE-2019-0543
Microsoft Windows Privilege Escalation Vulnerability
What is affected
| Vendor | Microsoft |
|---|---|
| Product | Windows |
| Weakness | CWE-287 |
The vulnerability
A privilege escalation vulnerability exists when Windows improperly handles authentication requests. An attacker who successfully exploited this vulnerability could run processes in an elevated context.
Required action
Apply updates per vendor instructions.
US federal civilian agencies were required to act by 5 April 2022 under BOD 22-01. The deadline is a compliance date, not a measure of severity — it says nothing about how dangerous the flaw is to anyone else.
Ransomware
CISA records this vulnerability as having been used in ransomware campaigns. That is a confirmed observation, not an assessment of likelihood.
Where this comes from
Every field on this page is taken from the CISA Known Exploited Vulnerabilities catalog, last synced 11 Nov 2026, 21:30. Nothing here is our own assessment. For the technical scoring, see the NVD record below.
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