CVE-2019-0703

Microsoft Windows — Microsoft Windows SMB Information Disclosure Vulnerability
⚠️ CVSS 3.1  6.5 / 10 — MEDIUM 🔴 CISA Known Exploited Vulnerability

Overview

An information disclosure vulnerability exists in the way that the Windows SMB Server handles certain requests, which could lead to information disclosure from the server.

https://nvd.nist.gov/vuln/detail/CVE-2019-0703

Key Details

PropertyValue
CVE ID CVE-2019-0703
Vendor / Product Microsoft — Windows
NVD Published2019-04-09
NVD Last Modified2025-10-29
CVSS 3.1 Score6.5
CVSS 3.1 VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SeverityMEDIUM
CISA KEV Added2022-05-23
CISA KEV Deadline2022-06-13
Known Ransomware Use No

CVSS 3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Required Action

CISA BOD 22-01 Deadline: 2022-06-13. Apply updates per vendor instructions.

Timeline

DateEvent
2022-05-23Added to CISA Known Exploited Vulnerabilities catalog
2022-06-13CISA BOD 22-01 remediation deadline

References

ResourceType
NVD — CVE-2019-0703 Vulnerability Database
CISA KEV Catalog Entry US Government