SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2019-1132

Microsoft Win32k Privilege Escalation Vulnerability

KEVHIGH 7.8EPSS 9.79%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 5 April 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k 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
9.79% probability · 95th percentile
CISA KEV
Listed 15 March 2022 · due 5 April 2022
Affected
microsoft/windows 7 · microsoft/windows server 2008
Source
secure@microsoft.com

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2019-1132

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