CVE-2020-1391

Windows Agent Activation Runtime Information Disclosure Vulnerability

CVE-2020-1391 is fixed in 12 products on 1 platform, first by KB4565483, released July 14, 2020. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.5
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0131
70th percentile

<p>An information disclosure vulnerability exists when the Windows Agent Activation Runtime (AarSvc) fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could obtain information to further compromise the user’s system.</p> <p>To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application.</p> <p>The update addresses the vulnerability by correcting how the Windows Agent Activation Runtime handles objects in memory.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Windows 10 Version 1903 for 32-bit Systems KB4565483 Jul 14, 2020
Windows 10 Version 1903 for ARM64-based Systems KB4565483 Jul 14, 2020
Windows 10 Version 1903 for x64-based Systems KB4565483 Jul 14, 2020
Windows 10 Version 1909 for 32-bit Systems KB4565483 Jul 14, 2020
Windows 10 Version 1909 for ARM64-based Systems KB4565483 Jul 14, 2020
Windows 10 Version 1909 for x64-based Systems KB4565483 Jul 14, 2020
Windows 10 Version 2004 for 32-bit Systems 19041.388 KB4565503 Jul 14, 2020
Windows 10 Version 2004 for ARM64-based Systems 19041.388 KB4565503 Jul 14, 2020
Windows 10 Version 2004 for x64-based Systems 19041.388 KB4565503 Jul 14, 2020
Windows Server, version 1903 (Server Core installation) KB4565483 Jul 14, 2020
Windows Server, version 1909 (Server Core installation) KB4565483 Jul 14, 2020
Windows Server, version 2004 (Server Core installation) 19041.388 KB4565503 Jul 14, 2020

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