Actively exploited · Published Sep 11, 2019 · Assigned by microsoft

CVE-2019-1214

High 7.8 Exploited

In plain English

A high-severity memory corruption in Windows from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on November 3, 2021). The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities). Apply updates per vendor instructions.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)1.4%top 27.1% of all CVEs
Exploited in the wildYesCISA KEV since Nov 3, 2021
Attack toolingNoneno public tooling known

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by May 3, 2022.

Official description

An elevation of privilege vulnerability exists when the Windows Common Log File System (CLFS) driver improperly handles objects in memory, aka 'Windows Common Log File System Driver Elevation of Privilege Vulnerability'.

Affected products (as reported)

VendorProductVersions
Microsoft Windows 7 for 32-bit Systems Service Pack 17 for x64-based Systems Service Pack 18.1 for 32-bit systems8.1 for x64-based systemsRT 8.110 for 32-bit Systems10 for x64-based Systems10 Version 1607 for 32-bit Systems
Microsoft Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Core installation)2008 R2 for Itanium-Based Systems Service Pack 12008 R2 for x64-based Systems Service Pack 12008 for 32-bit Systems Service Pack 2 (Core installation)20122012 (Core installation)2012 R22012 R2 (Core installation)
Microsoft Windows 10 Version 1903 for 32-bit Systems unspecified
Microsoft Windows 10 Version 1903 for x64-based Systems unspecified
Microsoft Windows 10 Version 1903 for ARM64-based Systems unspecified
Microsoft Windows Server, version 1903 (Server Core installation) unspecified

Weakness: CWE-119 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References