CVE-2018-8120

CVE-2018-8120 is a high-severity (CVSS 7.0) vulnerability in Microsoft Win32k. CISA added it to the Known Exploited Vulnerabilities catalog on March 15, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by April 5, 2022. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.

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." This affects Windows Server 2008, Windows 7, Windows Server 2008 R2. This CVE ID is unique from CVE-2018-8124, CVE-2018-8164, CVE-2018-8166.

CVSS vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

• http://www.securityfocus.com/bid/104034
• http://www.securitytracker.com/id/1040849
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8120
• https://www.exploit-db.com/exploits/45653/
• http://www.securityfocus.com/bid/104034
• http://www.securitytracker.com/id/1040849
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8120
• https://www.exploit-db.com/exploits/45653/