Microsoft Windows Print Spooler Privilege Escalation Vulnerability

HIGH 7.8EXPLOITED (CISA KEV)CVE-2022-21999 · Published 09/02/2022 · updated 17/06/2026

Microsoft Windows Print Spooler Privilege Escalation Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 25/03/2022. Patch affected systems as an emergency. It is known to be used in ransomware campaigns.

Package	Affected versions	Patched versions
Windows Microsoft	Versions not published yet (product named by CISA KEV)

Description

Windows Print Spooler Elevation of Privilege Vulnerability

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21999 · Patch
cisa.gov/known-exploited-vulnerabilities-catalog · US Government Resource
CISA KEV · CVE-2022-21999

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Scan my site free