What’s Vulnerable › Vulnerabilities
CVE-2020-1339: Windows Media Remote Code Execution Vulnerability
- Severity: critical (CVSS 9.3 v2.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 3.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-08-17 · updated 2026-06-17
Description
A remote code execution vulnerability exists when Windows Media Audio Codec improperly handles objects. An attacker who successfully exploited the vulnerability could take control of an affected system. There are multiple ways an attacker could exploit the vulnerability, such as by convincing a user to open a specially crafted document, or by convincing a user to visit a malicious webpage. The security update addresses the vulnerability by correcting how Windows Media Audio Codec handles objects.
Affected products
- Microsoft Windows 10 Version 1607: 1607, 1709, 1803, 1809, 1903, 1909 (+1)
- Microsoft Windows 7: all versions
- Microsoft Windows 8.1: all versions
- Microsoft Windows RT 8.1: all versions
- Microsoft Windows Server 2008: r2-sp1
- Microsoft Windows Server 2012: r2
- Microsoft Windows Server 2016: 1903, 1909, 2004
- Microsoft Windows Server 2019: all versions
- Microsoft Windows 10 Version 1507: from 10.0.0 before publication — fixed in publication
- Microsoft Windows 10 1607: from 10.0.0 before publication — fixed in publication
- Microsoft Windows 10 1709: from 10.0.0 before publication — fixed in publication
- Microsoft Windows 10 Version 1709 for 32-bit Systems: from 10.0.0 before publication — fixed in publication
- Microsoft Windows 10 1803: from 10.0.0 before publication — fixed in publication
- Microsoft Windows 10: from 10.0.0 before publication — fixed in publication
- Microsoft Windows 10 Version 1903 for 32-bit Systems: from 10.0.0 before publication — fixed in publication
- Microsoft Windows 10 Version 1903 for ARM64-based Systems: from 10.0.0 before publication — fixed in publication
- Microsoft Windows 10 Version 1903 for x64-based Systems: from 10.0.0 before publication — fixed in publication
- Microsoft Windows 10 1909: from 10.0.0 before publication — fixed in publication
- Microsoft Windows 10 2004: from 10.0.0 before publication — fixed in publication
- Microsoft Windows 7: from 6.1.0 before publication — fixed in publication
- Microsoft Windows 7 Service Pack 1: from 6.1.0 before publication — fixed in publication
- Microsoft Windows 8.1: from 6.3.0 before publication — fixed in publication
- Microsoft Windows Server 2008 R2 Service Pack 1: from 6.1.0 before publication — fixed in publication
- Microsoft Windows Server 2008 Service Pack 2: from 6.0.0 before publication — fixed in publication
- Microsoft Windows Server 2012: from 6.2.0 before publication — fixed in publication
- Microsoft Windows Server 2012 R2: from 6.3.0 before publication — fixed in publication
- Microsoft Windows Server 2016: from 10.0.0 before publication — fixed in publication
- Microsoft Windows Server 2019: from 10.0.0 before publication — fixed in publication
- Microsoft Windows Server, version 1903 (Server Core installation): from 10.0.0 before publication — fixed in publication
- Microsoft Windows Server, version 1909 (Server Core installation): from 10.0.0 before publication — fixed in publication
How to fix
Upgrade to a fixed version: Microsoft Windows 10 Version 1507 publication; Microsoft Windows 10 1607 publication; Microsoft Windows 10 1709 publication; Microsoft Windows 10 Version 1709 for 32-bit Systems publication; Microsoft Windows 10 1803 publication; Microsoft Windows 10 publication; Microsoft Windows 10 Version 1903 for 32-bit Systems publication; Microsoft Windows 10 Version 1903 for ARM64-based Systems publication; Microsoft Windows 10 Version 1903 for x64-based Systems publication; Microsoft Windows 10 1909 publication; Microsoft Windows 10 2004 publication; Microsoft Windows 7 publication. Check the vendor advisory for mitigations.
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1339
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1339
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