---
title: "CVE-2019-0703: Microsoft Windows vulnerability | CubePath"
description: "An information disclosure vulnerability exists in the way that the Windows SMB Server handles certain requests, aka 'Windows SMB Information Disclosure…"
language: en
source: https://cubepath.com/security/cve/CVE-2019-0703
---

# CVE-2019-0703: Microsoft Windows vulnerability | CubePath

## 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.

Official description from the CVE record, published by microsoft. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2019-0703)

## Key data

### CVSS 3.1 Medium 6.5

Score published by CISA-ADP in the CVE record.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

| Metric                 | Value     | What it means                                                                       |
| ---------------------- | --------- | ----------------------------------------------------------------------------------- |
| Attack vector          | Network   | The vulnerable component can be reached over a network, possibly from the Internet. |
| Attack complexity      | Low       | No special conditions are needed. The attack can be repeated at will.               |
| Privileges required    | Low       | A basic user account is needed.                                                     |
| User interaction       | None      | No action from any user is needed.                                                  |
| Scope                  | Unchanged | The impact stays within the vulnerable component.                                   |
| Confidentiality impact | High      | Serious or total effect on the secrecy of data.                                     |
| Integrity impact       | None      | No effect on the trustworthiness of data.                                           |
| Availability impact    | None      | No effect on availability.                                                          |

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) .

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.09385 (9.4% probability)

Percentile

95.4%

Scores of

Nov 10, 2026

Model

v2026.06.15

### CISA Known Exploited Vulnerabilities

This CVE is listed in the CISA KEV catalog.

Name in the catalog

Microsoft Windows SMB Information Disclosure Vulnerability

Added to the catalog

May 23, 2022

Federal due date

Jun 13, 2022

### CISA assessment as of Feb 7, 2025

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Exploitation

Recorded by CISA as active

Automatable

no

Technical impact

partial

## Affected products

Products listed in the CVE record, as the CNA published them.

- Microsoft Windows

  - affected: 7 for 32-bit Systems Service Pack 1
  - affected: 7 for x64-based Systems Service Pack 1
  - affected: 8.1 for 32-bit systems
  - affected: 8.1 for x64-based systems
  - affected: RT 8.1
  - affected: 10 for 32-bit Systems
  - affected: 10 for x64-based Systems
  - affected: 10 Version 1607 for 32-bit Systems
  - affected: 10 Version 1607 for x64-based Systems
  - affected: 10 Version 1703 for 32-bit Systems
  - affected: 10 Version 1703 for x64-based Systems
  - affected: 10 Version 1709 for 32-bit Systems
  - affected: 10 Version 1709 for x64-based Systems
  - affected: 10 Version 1803 for 32-bit Systems
  - affected: 10 Version 1803 for x64-based Systems
  - affected: 10 Version 1803 for ARM64-based Systems
  - affected: 10 Version 1809 for 32-bit Systems
  - affected: 10 Version 1709 for ARM64-based Systems
- Microsoft Windows Server

  - affected: 2008 R2 for x64-based Systems Service Pack 1 (Core installation)
  - affected: n/a

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [portal.msrc.microsoft.com/en-US/security-guidance/advisory/…](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0703)

## Timeline

1. ID reserved Nov 26, 2018
2. Record published Apr 8, 2019
3. Added to CISA KEV May 23, 2022
4. Record last updated Oct 21, 2025

## Look up another CVE

## About CubePath

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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:28 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)