SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2022-38028

Microsoft Windows Print Spooler Privilege Escalation Vulnerability

KEVHIGH 7.8EPSS 14.9%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 14 May 2024). 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
14.95% probability · 97th percentile
CISA KEV
Listed 23 April 2024 · due 14 May 2024
Affected
microsoft/windows 10 1507 · microsoft/windows 10 1607 · microsoft/windows 10 1809 · microsoft/windows 10 20h2 · microsoft/windows 10 21h1 · microsoft/windows 10 21h2 · microsoft/windows 11 22h2 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019 · microsoft/windows server 2022
Source
secure@microsoft.com

CISA notes

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-38028; https://nvd.nist.gov/vuln/detail/CVE-2022-38028

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.