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Vulnerability · Published Jan 12, 2021 · Assigned by microsoft

CVE-2021-1699Windows (modem.sys) Information Disclosure Vulnerability

Medium 5.5

In plain English

A medium-severity security flaw in Windows 10 Version 1507 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.1% (higher than 82% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)2.1%top 17.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Public PoC

Official description

Windows (modem.sys) Information Disclosure Vulnerability

Affected products (as reported)

VendorProductVersions
Microsoft Windows 10 Version 20H2 10.0.0 – before publication
Microsoft Windows Server version 20H2 10.0.0 – before publication
Microsoft Windows 10 Version 1803 10.0.0 – before publication
Microsoft Windows 10 Version 1809 10.0.0 – before publication
Microsoft Windows Server 2019 10.0.0 – before publication
Microsoft Windows Server 2019 (Server Core installation) 10.0.0 – before publication
Microsoft Windows 10 Version 1909 10.0.0 – before publication
Microsoft Windows Server, version 1909 (Server Core installation) 10.0.0 – before publication
Microsoft Windows 10 Version 2004 10.0.0 – before publication
Microsoft Windows Server version 2004 10.0.0 – before publication
Microsoft Windows 10 Version 1507 10.0.0 – before publication
Microsoft Windows 10 Version 1607 10.0.0 – before publication
Microsoft Windows Server 2016 10.0.0 – before publication
Microsoft Windows Server 2016 (Server Core installation) 10.0.0 – before publication
Microsoft Windows 7 6.1.0 – before publication
Microsoft Windows 7 Service Pack 1 6.1.0 – before publication
Microsoft Windows 8.1 6.3.0 – before publication
Microsoft Windows Server 2008 Service Pack 2 6.0.0 – before publication
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.0 – before publication
Microsoft Windows Server 2008 Service Pack 2 6.0.0 – before publication
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.0 – before publication
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.0.0 – before publication
Microsoft Windows Server 2012 6.2.0 – before publication
Microsoft Windows Server 2012 (Server Core installation) 6.2.0 – before publication
Microsoft Windows Server 2012 R2 6.3.0 – before publication
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.0 – before publication

References