CVE-2019-0633: A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 2.0 (SMBv2) server ha…
- Is it exploited?
Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of .
VulnCheck KEV lists it since . It cites 2 public reports, the first from .
- How likely is exploitation in the next 30 days?
- 13%
EPSS score, percentile 96.3 of all scored records. A probability estimated by FIRST, not a report of exploitation.
- How severe?
- Not scored
The CVE record carries no CVSS score.
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- 2012
- 2012 (Core installation)
- 2012 R2
- 2012 R2 (Core installation)
- 2016
- 2016 (Core installation)
and 16 more in the table below
Source: CISA KEV 2026.10.29, as of ; VulnCheck KEV, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
Description
A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 2.0 (SMBv2) server handles certain requests, aka 'Windows SMB Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-0630.
Source: CVE List, as of . About the data.
What to do
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
Versions by product, as listed in the CVE record (2 products)
| Status | Versions |
|---|---|
| Affected | 2012 |
| Affected | 2012 (Core installation) |
| Affected | 2012 R2 |
| Affected | 2012 R2 (Core installation) |
| Affected | 2016 |
| Affected | 2016 (Core installation) |
| Affected | version 1709 (Core Installation) |
| Affected | version 1803 (Core Installation) |
| Affected | 2019 |
| Affected | 2019 (Core installation) |
| Status | Versions |
|---|---|
| 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 |
And 6 more version entries in the CVE record.
Source: CVE List, as of . About the data.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| CVE record last updated |
References
2
Known exploited Microsoft vulnerabilities
- CVE-2026-96951: Microsoft Windows Command Injection Vulnerability
- CVE-2026-65660: Microsoft SharePoint Code Injection Vulnerability
- CVE-2026-81963: Microsoft Windows Link Following Vulnerability
- CVE-2026-85880: Microsoft Windows Heap-Based Buffer Overflow Vulnerability
- CVE-2019-1068: Microsoft SQL Server Remote Code Execution Vulnerability