CVE-2019-0703

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.

Score

CVSS 3.1 6.5 Medium

Status

Analyzed - secure@microsoft.com

Published

2019-04-09

Last modified

2025-10-21

Known exploited (CISA KEV)

since 2022-05-23, action due 2022-06-13: Apply updates per vendor instructions.

Affected products

• Windows (Microsoft)
• Windows 10 1507 (Microsoft)
• Windows 10 1607 (Microsoft)
• Windows 10 1703 (Microsoft)
• Windows 10 1709 (Microsoft)
• Windows 10 1803 (Microsoft)
• Windows 10 1809 (Microsoft)
• Windows 7 (Microsoft)
• Windows 8.1 (Microsoft)
• Windows Rt 8.1 (Microsoft)
• Windows Server (Microsoft)
• Windows Server 1709 (Microsoft)
• Windows Server 1803 (Microsoft)
• Windows Server 2008 (Microsoft)
• Windows Server 2012 (Microsoft)
• Windows Server 2016 (Microsoft)
• Windows Server 2019 (Microsoft)

References

• 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