CVE-2019-0959

An elevation of privilege vulnerability exists when the Windows Common Log File System (CLFS) driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context. To exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system. The security update addresses the vulnerability by correcting how CLFS handles objects in memory.

Score

CVSS 3.0 7.8 High

Status

Modified - secure@microsoft.com

Published

2019-06-12

Last modified

2025-05-20

Affected products

• Windows 10 (Microsoft)
• Windows 10 1809 (Microsoft)
• Windows Server 1803 (Microsoft)
• Windows Server 1903 (Microsoft)
• Windows Server 2016 (Microsoft)
• Windows Server 2019 (Microsoft)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-0959
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0959