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CVE-2020-0796
CRITICAL
CISA KEV
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'.
Published: Mar 12, 2020
Modified: Aug 12, 2026
CWE-119
CWE-119
CVSS Metrics
CVSSv3
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
CHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected Products (8)
| Vendor | Product | Version |
|---|---|---|
| microsoft | windows_10_1903 | - |
| microsoft | windows_10_1903 | - |
| microsoft | windows_10_1903 | - |
| microsoft | windows_10_1909 | - |
| microsoft | windows_10_1909 | - |
| microsoft | windows_10_1909 | - |
| microsoft | windows_server_1903 | - |
| microsoft | windows_server_1909 | - |
GitHub Security Advisory GHSA-vh23-87v3-h8c6
A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3...
References (15)
- http://packetstormsecurity.com/files/156731/CoronaBlue-SMBGhost-Microsoft-Windows-10-SMB-3.1.1-Proof-Of-Concept.html Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/156732/Microsoft-Windows-SMB-3.1.1-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/156980/Microsoft-Windows-10-SMB-3.1.1-Local-Privilege-Escalation.html Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/157110/SMBv3-Compression-Buffer-Overflow.html Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/157901/Microsoft-Windows-SMBGhost-Remote-Code-Execution.html Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/158054/SMBleed-SMBGhost-Pre-Authentication-Remote-Code-Execution-Proof-Of-Concept.html Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0796 Patch, Vendor Advisory
- http://packetstormsecurity.com/files/156731/CoronaBlue-SMBGhost-Microsoft-Windows-10-SMB-3.1.1-Proof-Of-Concept.html Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/156732/Microsoft-Windows-SMB-3.1.1-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/156980/Microsoft-Windows-10-SMB-3.1.1-Local-Privilege-Escalation.html Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/157110/SMBv3-Compression-Buffer-Overflow.html Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/157901/Microsoft-Windows-SMBGhost-Remote-Code-Execution.html Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/158054/SMBleed-SMBGhost-Pre-Authentication-Remote-Code-Execution-Proof-Of-Concept.html Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0796 Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0796 US Government Resource
Risk Scores
CVSS Score
10.0 / 10
EPSS Score
99.81%
Top 0% most likely to be exploited
Threat Score
99.9 / 100
CISA Known Exploited
Date Added:
2022-02-10
Due Date:
2022-08-10
Required Action:
Apply updates per vendor instructions.
Used in Ransomware Campaigns
Data Sources
NVD
CISA KEV
EPSS
GitHub