SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2022-22718

Microsoft Windows Print Spooler Privilege Escalation Vulnerability

KEVHIGH 7.8EPSS 18.5%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 10 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

Windows Print Spooler Elevation of Privilege Vulnerability

CVSS 3.1
7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
18.46% probability · 97th percentile
Public exploits
None in Exploit-DB
CISA KEV
Listed 19 April 2022 · due 10 May 2022
Affected
microsoft/windows 10 1507 · microsoft/windows 10 1607 · microsoft/windows 10 1809 · microsoft/windows 10 1909 · microsoft/windows 10 20h2 · microsoft/windows 10 21h1 · microsoft/windows 10 21h2 · microsoft/windows 11 21h2 · microsoft/windows 7 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019 · microsoft/windows server 2022 · microsoft/windows server 20h2
Source
secure@microsoft.com
EPSS trend
0%10%20%30 October 2026: 18.46%30 October 202630 October 2026

EPSS 18.5% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2022-22718

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.