What’s Vulnerable › Vulnerabilities

CVE-2020-1389

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-07-14 · updated 2026-06-17
• Weakness: CWE-665

Description

An information disclosure vulnerability exists when the Windows kernel fails to properly initialize a memory address, aka 'Windows Kernel Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2020-1367, CVE-2020-1419, CVE-2020-1426.

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 Corporation Windows: 10 Version 1803 for 32-bit Systems, 10 Version 1803 for x64-based Systems, 10 Version 1803 for ARM64-based Systems, 10 Version 1809 for 32-bit Systems, 10 Version 1809 for x64-based Systems, 10 Version 1809 for ARM64-based Systems (+11)
• Microsoft Windows 10 Version 1903 for 32-bit Systems: all versions
• Microsoft Windows 10 Version 1903 for ARM64-based Systems: all versions
• Microsoft Windows 10 Version 1903 for x64-based Systems: all versions
• Microsoft Windows 10 Version 1909 for 32-bit Systems: all versions
• Microsoft Windows 10 Version 1909 for ARM64-based Systems: all versions
• Microsoft Windows 10 Version 1909 for x64-based Systems: all versions
• Microsoft Windows 10 Version 2004 for 32-bit Systems: all versions
• Microsoft Windows 10 Version 2004 for ARM64-based Systems: all versions
• Microsoft Windows 10 Version 2004 for x64-based Systems: all versions
• Microsoft Windows Server: 2019, 2016, 2016 (Core installation), 2008 for 32-bit Systems Service Pack 2, 2008 for 32-bit Systems Service Pack 2 (Core installation), 2008 for x64-based Systems Service Pack 2 (+7)
• Microsoft Windows Server, version 1903 (Server Core installation): all versions
• Microsoft Windows Server, version 1909 (Server Core installation): all versions
• Microsoft Windows Server version 2004: all versions

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1389
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1389

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