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CVE-2022-21999: Microsoft Windows Print Spooler Privilege Escalation Vulnerability

criticalknown exploitedpublic exploitCVE-2022-21999
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Microsoft Windows Print Spooler contains an unspecified vulnerability which can allow for privilege escalation.

CSIRTS triage

vendor: Microsoftproduct: Windows Print SpoolerPrivilege escalationOther
What
An unspecified vulnerability in the Print Spooler can allow for privilege escalation.
Who is affected
Users of Microsoft Windows with the Print Spooler service enabled are affected.
Urgency
Remediation is urgent due to the critical severity and potential for exploitation.
Action
Install the latest security updates from Microsoft to mitigate this vulnerability.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-03-25
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2022-21999

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2022-21999coverage & exploitation statusNVD · CVE.org

Recent advisories for Microsoft Windows Print

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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