Actively exploited
Listed in CISA’s Known Exploited Vulnerabilities catalog since November 3, 2021.
CVE-2019-0859
Microsoft Win32k Privilege Escalation Vulnerability
Added to KEV November 3, 2021
Alert details
- Source feed
- CISA KEV
- CVE ID
- CVE-2019-0859
- Affected products
- Win32k · Microsoft Win32k · Microsoft
What happened
Microsoft Win32k fails to properly handle objects in memory causing privilege escalation. Successful exploitation allows an attacker to run code in kernel mode.
What it means for your business
Microsoft Win32k is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2019-0859). Microsoft Win32k fails to properly handle objects in memory causing privilege escalation. Successful exploitation allows an attacker to run code in kernel mode. CISA remediation due date: 2022-05-03. If you need help checking exposure, call (864) 335-9223.
Required action
Apply updates per vendor instructions.
CISA due date: May 3, 2022
Sources
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