ACTIVELY EXPLOITED

CVE-2019-0880: Microsoft Windows Privilege Escalation Vulnerability

Facts
VendorMicrosoft
ProductWindows
Actively exploitedYes
Added to CISA KEV23 May 2022
CISA federal deadline13 Jun 2022

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

A local elevation of privilege vulnerability exists in how splwow64.exe handles certain calls. An attacker who successfully exploited the vulnerability could elevate privileges on an affected system from low-integrity to medium-integrity.

SOURCES

Other Microsoft flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.