CVE-2018-8637

Win32k Information Disclosure Vulnerability

CVE-2018-8637 is fixed in 9 products on 1 platform, first by KB4471324, released December 11, 2018. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

Urgent
CVSS
4.7
Important
Exploitation
More likely
Vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0185
79th percentile

<p>An information disclosure vulnerability exists in Windows kernel that could allow an attacker to retrieve information that could lead to a Kernel Address Space Layout Randomization (KASLR) bypass. An attacker who successfully exploited this vulnerability could retrieve the memory address of a kernel object.</p> <p>To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application.</p> <p>The security update addresses the vulnerability by correcting how the Windows kernel handles memory addresses.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Windows 10 Version 1803 for 32-bit Systems 17134.471 KB4471324 Dec 11, 2018
Windows 10 Version 1803 for ARM64-based Systems 17134.471 KB4471324 Dec 11, 2018
Windows 10 Version 1803 for x64-based Systems 17134.471 KB4471324 Dec 11, 2018
Windows 10 Version 1809 for 32-bit Systems 17763.194 KB4471332 Dec 11, 2018
Windows 10 Version 1809 for ARM64-based Systems 17763.194 KB4471332 Dec 11, 2018
Windows 10 Version 1809 for x64-based Systems 17763.194 KB4471332 Dec 11, 2018
Windows Server 2019 17763.194 KB4471332 Dec 11, 2018
Windows Server 2019 (Server Core installation) 17763.194 KB4471332 Dec 11, 2018
Windows Server, version 1803 (Server Core Installation) 17134.471 KB4471324 Dec 11, 2018