CVE-2019-0703

Microsoft Windows, Microsoft Windows Server

Published 9 Apr 2019 · updated 17 Jun 2026 · Analyzed

6.5 Medium · CVSS 3.1, NVD

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 23 May 2022, with a remediation deadline of 13 Jun 2022 for US federal agencies.

Required action: Apply updates per vendor instructions.

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.

References

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0703 · Patch, Vendor Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0703 · US Government Resource