What’s Vulnerable › Vulnerabilities

CVE-2019-0703: Microsoft Windows SMB Information Disclosure Vulnerability

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2022-05-23
• EPSS: 9.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-04-08 · updated 2026-06-17

Description

An information disclosure vulnerability exists in the way that the Windows SMB Server handles certain requests, aka 'Windows SMB Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2019-0704, CVE-2019-0821.

Affected products

• Microsoft Windows 10 Version 1507: all versions
• Microsoft Windows 10 1607: all versions
• Microsoft Corporation Windows 10 1703: all versions
• Microsoft Windows 10 1709: all versions
• Microsoft Windows 10 1803: all versions
• Microsoft Windows 10: all versions
• Microsoft Windows 7: all versions
• Microsoft Windows 8.1: all versions
• Microsoft Windows RT 8.1: all versions
• Microsoft Windows Server 1709: all versions
• Microsoft Windows Server 1803: all versions
• Microsoft Windows Server 2008: r2-sp1
• Microsoft Windows Server 2012: r2
• Microsoft Windows Server 2016: all versions
• Microsoft Windows Server 2019: all versions
• Microsoft Corporation Windows: 7 for 32-bit Systems Service Pack 1, 7 for x64-based Systems Service Pack 1, 8.1 for 32-bit systems, 8.1 for x64-based systems, RT 8.1, 10 for 32-bit Systems (+12)
• Microsoft Windows Server: 2008 R2 for x64-based Systems Service Pack 1 (Core installation)

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0703
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0703
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0703

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