Actively exploited · Published Nov 12, 2019 · Assigned by microsoft

CVE-2019-1385

High 7.8 Exploited Ransomware

In plain English

A high-severity security flaw in Windows from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on May 23, 2022). It has been used in ransomware campaigns. The chance it is exploited in the next 30 days is estimated at 3.6% (higher than 90% of all known vulnerabilities). Apply updates per vendor instructions.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)3.6%top 10.5% of all CVEs
Exploited in the wildYesCISA KEV since May 23, 2022
Attack toolingNoneno public tooling known

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by Jun 13, 2022.

Official description

An elevation of privilege vulnerability exists when the Windows AppX Deployment Extensions improperly performs privilege management, resulting in access to system files.To exploit this vulnerability, an authenticated attacker would need to run a specially crafted application to elevate privileges.The security update addresses the vulnerability by correcting how AppX Deployment Extensions manages privileges., aka 'Windows AppX Deployment Extensions Elevation of Privilege Vulnerability'.

Affected products (as reported)

VendorProductVersions
Microsoft Windows 10 Version 1709 for 32-bit Systems10 Version 1709 for x64-based Systems10 Version 1803 for 32-bit Systems10 Version 1803 for x64-based Systems10 Version 1803 for ARM64-based Systems10 Version 1809 for 32-bit Systems10 Version 1809 for x64-based Systems10 Version 1809 for ARM64-based Systems
Microsoft Windows Server version 1803 (Core Installation)20192019 (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-59 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References