Vulnerability Intelligence Report
Microsoft SMBv3 Remote Code Execution Vulnerability
CVE-2020-0796
A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests, aka 'Windows SMBv3 Client/Server Remote Code Execution Vulnerability'.
CISA KEV
Nuclei Template
SSVC: Active Exploitation
Automatable
CVSS Base Score
10.0
CRITICAL
Exploitability:3.9
Impact Score:6.1
EPSS Probability:99.81%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-119 ↗CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1903 for 32-bit Systems | unspecified (affected) |
| Microsoft | Windows 10 Version 1903 for x64-based Systems | unspecified (affected) |
| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | unspecified (affected) |
| Microsoft | Windows Server, version 1903 (Server Core installation) | unspecified (affected) |
| Microsoft | Windows 10 Version 1909 for 32-bit Systems | unspecified (affected) |
| Microsoft | Windows 10 Version 1909 for x64-based Systems | unspecified (affected) |
| Microsoft | Windows 10 Version 1909 for ARM64-based Systems | unspecified (affected) |
| Microsoft | Windows Server, version 1909 (Server Core installation) | unspecified (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
Nuclei Template
SCANNER AVAILABLE
EPSS Score
99.810%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2019-11-04T00:00:00 |
| Published | 2020-03-12T15:48:18 |
| Last Updated | 2026-08-12T03:55:41 |
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