CVEs / CVE-2019-0703
CVE-2019-0703: Microsoft Windows SMB Information Disclosure Vulnerability
- Known exploited in the CISA KEV catalog since 23 May 2022
- medium 6.5 CVSS 3.1 (NVD)
- EPSS 9.38% chance of exploitation in the next 30 days, higher than 95% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
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.
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 and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Windows | 7 for 32-bit Systems Service Pack 1 | — |
| Microsoft Windows | 7 for x64-based Systems Service Pack 1 | — |
| Microsoft Windows | 8.1 for 32-bit systems | — |
| Microsoft Windows | 8.1 for x64-based systems | — |
| Microsoft Windows | RT 8.1 | — |
| Microsoft Windows | 10 for 32-bit Systems | — |
| Microsoft Windows | 10 for x64-based Systems | — |
| Microsoft Windows | 10 Version 1607 for 32-bit Systems | — |
| Microsoft Windows | 10 Version 1607 for x64-based Systems | — |
| Microsoft Windows | 10 Version 1703 for 32-bit Systems | — |
| Microsoft Windows | 10 Version 1703 for x64-based Systems | — |
| Microsoft Windows | 10 Version 1709 for 32-bit Systems | — |
| Microsoft Windows | 10 Version 1709 for x64-based Systems | — |
| Microsoft Windows | 10 Version 1803 for 32-bit Systems | — |
| Microsoft Windows | 10 Version 1803 for x64-based Systems | — |
| Microsoft Windows | 10 Version 1803 for ARM64-based Systems | — |
| Microsoft Windows | 10 Version 1809 for 32-bit Systems | — |
| Microsoft Windows | 10 Version 1709 for ARM64-based Systems | — |
| Microsoft Windows Server | 2008 R2 for x64-based Systems Service Pack 1 (Core installation) | — |
| Microsoft Windows Server | n/a | — |
Exploitation
| In CISA KEV since | 23 May 2022 |
|---|---|
| Due date for US federal agencies | 13 Jun 2022 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NScored by NVD |
|---|
References
- CVE-2019-0703 on NVD
- CVE-2019-0703 in the CISA KEV catalog
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0703 Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0703 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.