What’s Vulnerable › Vulnerabilities
CVE-2020-1076: Windows Denial of Service Vulnerability
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-05-21 · updated 2026-08-19
Description
A denial of service vulnerability exists when Windows improperly handles objects in memory. An attacker who successfully exploited the vulnerability could cause a target system to stop responding. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The vulnerability would not allow an attacker to execute code or to elevate user rights directly, but it could be used to cause a target system to stop responding. The update addresses the vulnerability by correcting how Windows handles objects in memory.
Affected products
- Microsoft Windows 10 Version 1607: 1607, 1709, 1803, 1809, 1903, 1909
- 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: all versions
- Microsoft Windows Server 2019: 1903, 1909
- Microsoft Windows 10 Version 1507: from 10.0.10240.0 before publication — fixed in publication
- Microsoft Windows 10 1607: from 10.0.14393.0 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 10.0.17763.0 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 8.1: from 6.3.0 before publication — fixed in publication
- Microsoft Windows Server 2012: from 6.2.9200.0 before publication — fixed in publication
- Microsoft Windows Server 2012 R2: from 6.3.9600.0 before publication — fixed in publication
- Microsoft Windows Server 2016: from 10.0.14393.0 before publication — fixed in publication
- Microsoft Windows Server 2019: from 10.0.17763.0 before publication — fixed in publication
- Microsoft Windows Server, version 1803 (Server Core Installation): 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 8.1 publication; Microsoft Windows Server 2012 publication. Check the vendor advisory for mitigations.
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1076
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1076
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