CVE-2019-1214

CVE-2019-1214 is a high-severity (CVSS 7.8) vulnerability in Microsoft Windows. CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by May 3, 2022. CISA does not currently list it as used in ransomware campaigns. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.

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'.

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

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1214
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1214
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1214