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URL: https://nvd.nist.gov/vuln/detail/cve-2020-0796

⇱ NVD - cve-2020-0796

  1. Vulnerabilities

CVE-2020-0796 Detail

Description

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'.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://packetstormsecurity.com/files/156731/CoronaBlue-SMBGhost-Microsoft-Windows-10-SMB-3.1.1-Proof-Of-Concept.html CVE, Microsoft Corporation Third Party Advisory  VDB Entry 
http://packetstormsecurity.com/files/156732/Microsoft-Windows-SMB-3.1.1-Remote-Code-Execution.html CVE, Microsoft Corporation Exploit  Third Party Advisory  VDB Entry 
http://packetstormsecurity.com/files/156980/Microsoft-Windows-10-SMB-3.1.1-Local-Privilege-Escalation.html CVE, Microsoft Corporation Third Party Advisory  VDB Entry 
http://packetstormsecurity.com/files/157110/SMBv3-Compression-Buffer-Overflow.html CVE, Microsoft Corporation Exploit  Third Party Advisory  VDB Entry 
http://packetstormsecurity.com/files/157901/Microsoft-Windows-SMBGhost-Remote-Code-Execution.html CVE, Microsoft Corporation Third Party Advisory  VDB Entry 
http://packetstormsecurity.com/files/158054/SMBleed-SMBGhost-Pre-Authentication-Remote-Code-Execution-Proof-Of-Concept.html CVE, Microsoft Corporation Third Party Advisory  VDB Entry 
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0796 CVE, Microsoft Corporation Patch  Vendor Advisory 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0796 CISA-ADP US Government Resource 

This CVE is in CISA's Known Exploited Vulnerabilities Catalog

Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.

Vulnerability Name Date Added Due Date Required Action
Microsoft SMBv3 Remote Code Execution Vulnerability 02/10/2022 08/10/2022 Apply updates per vendor instructions.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer 👁 cwe source acceptance level
NIST   CISA-ADP  

Known Affected Software Configurations Switch to CPE 2.2

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Denotes Vulnerable Software
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Change History

18 change records found show changes

CVE Modified by CISA-ADP 6/16/2026 10:46:38 PM

Action Type Old Value New Value
Added SSVC 
{"timestamp":"2025-02-04T15:32:19.594287Z","id":"CVE-2020-0796","options":[{"exploitation":"active"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

CVE Modified by Microsoft Corporation 6/16/2026 10:46:38 PM

Action Type Old Value New Value
Added Affected 
[{"vendor":"Microsoft","product":"Windows 10 Version 1903 for 32-bit Systems","versions":[{"version":"unspecified","status":"affected"}]},{"vendor":"Microsoft","product":"Windows 10 Version 1903 for x64-based Systems","versions":[{"version":"unspecified","status":"affected"}]},{"vendor":"Microsoft","product":"Windows 10 Version 1903 for ARM64-based Systems","versions":[{"version":"unspecified","status":"affected"}]},{"vendor":"Microsoft","product":"Windows Server, version 1903 (Server Core installation)","versions":[{"version":"unspecified","status":"affected"}]},{"vendor":"Microsoft","product":"Windows 10 Version 1909 for 32-bit Systems","versions":[{"version":"unspecified","status":"affected"}]},{"vendor":"Microsoft","product":"Windows 10 Version 1909 for x64-based Systems","versions":[{"version":"unspecified","status":"affected"}]},{"vendor":"Microsoft","product":"Windows 10 Version 1909 for ARM64-based Systems","versions":[{"version":"unspecified","status":"affected"}]},{"vendor":"Microsoft","product":"Windows Server, version 1909 (Server Core installation)","versions":[{"version":"unspecified","status":"affected"}]}]

Modified Analysis by NIST 10/29/2025 10:27:11 AM

Action Type Old Value New Value
Added Reference Type 
CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0796 Types: US Government Resource

CVE Modified by CISA-ADP 10/21/2025 8:16:53 PM

Action Type Old Value New Value
Added Reference 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0796

CVE Modified by CISA-ADP 10/21/2025 4:17:43 PM

Action Type Old Value New Value
Removed Reference 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0796

CVE Modified by CISA-ADP 10/21/2025 3:18:12 PM

Action Type Old Value New Value
Added Reference 
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0796

Modified Analysis by NIST 4/04/2025 4:28:23 PM

Action Type Old Value New Value
Changed CPE Configuration 
OR
 *cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*
 *cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*
 *cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*
 *cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*


 
OR
 *cpe:2.3:o:microsoft:windows_10_1909:-:*:*:*:*:*:x64:*
 *cpe:2.3:o:microsoft:windows_10_1903:-:*:*:*:*:*:x64:*
 *cpe:2.3:o:microsoft:windows_10_1903:-:*:*:*:*:*:arm64:*
 *cpe:2.3:o:microsoft:windows_10_1903:-:*:*:*:*:*:x86:*
 *cpe:2.3:o:microsoft:windows_10_1909:-:*:*:*:*:*:arm64:*
 *cpe:2.3:o:microsoft:windows_10_1909:-:*:*:*:*:*:x86:*
 *cpe:2.3:o:microsoft:windows_server_1909:-:*:*:*:*:*:x64:*
 *cpe:2.3:o:microsoft:windows_server_1903:-:*:*:*:*:*:x64:*

CVE Modified by CISA-ADP 2/04/2025 11:15:32 AM

Action Type Old Value New Value
Added CVSS V3.1 
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Added CWE 
CWE-119

CVE Modified by CVE 11/20/2024 11:54:13 PM

Action Type Old Value New Value
Added Reference 
http://packetstormsecurity.com/files/156731/CoronaBlue-SMBGhost-Microsoft-Windows-10-SMB-3.1.1-Proof-Of-Concept.html
Added Reference 
http://packetstormsecurity.com/files/156732/Microsoft-Windows-SMB-3.1.1-Remote-Code-Execution.html
Added Reference 
http://packetstormsecurity.com/files/156980/Microsoft-Windows-10-SMB-3.1.1-Local-Privilege-Escalation.html
Added Reference 
http://packetstormsecurity.com/files/157110/SMBv3-Compression-Buffer-Overflow.html
Added Reference 
http://packetstormsecurity.com/files/157901/Microsoft-Windows-SMBGhost-Remote-Code-Execution.html
Added Reference 
http://packetstormsecurity.com/files/158054/SMBleed-SMBGhost-Pre-Authentication-Remote-Code-Execution-Proof-Of-Concept.html
Added Reference 
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0796

CVE Modified by Microsoft Corporation 5/14/2024 2:13:47 AM

Action Type Old Value New Value

Modified Analysis by NIST 4/22/2022 3:02:46 PM

Action Type Old Value New Value
Changed Reference Type 
http://packetstormsecurity.com/files/156731/CoronaBlue-SMBGhost-Microsoft-Windows-10-SMB-3.1.1-Proof-Of-Concept.html Third Party Advisory


 
http://packetstormsecurity.com/files/156731/CoronaBlue-SMBGhost-Microsoft-Windows-10-SMB-3.1.1-Proof-Of-Concept.html Third Party Advisory, VDB Entry
Changed Reference Type 
http://packetstormsecurity.com/files/156732/Microsoft-Windows-SMB-3.1.1-Remote-Code-Execution.html Third Party Advisory


 
http://packetstormsecurity.com/files/156732/Microsoft-Windows-SMB-3.1.1-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
Changed Reference Type 
http://packetstormsecurity.com/files/156980/Microsoft-Windows-10-SMB-3.1.1-Local-Privilege-Escalation.html No Types Assigned


 
http://packetstormsecurity.com/files/156980/Microsoft-Windows-10-SMB-3.1.1-Local-Privilege-Escalation.html Third Party Advisory, VDB Entry
Changed Reference Type 
http://packetstormsecurity.com/files/157110/SMBv3-Compression-Buffer-Overflow.html No Types Assigned


 
http://packetstormsecurity.com/files/157110/SMBv3-Compression-Buffer-Overflow.html Exploit, Third Party Advisory, VDB Entry
Changed Reference Type 
http://packetstormsecurity.com/files/157901/Microsoft-Windows-SMBGhost-Remote-Code-Execution.html No Types Assigned


 
http://packetstormsecurity.com/files/157901/Microsoft-Windows-SMBGhost-Remote-Code-Execution.html Third Party Advisory, VDB Entry
Changed Reference Type 
http://packetstormsecurity.com/files/158054/SMBleed-SMBGhost-Pre-Authentication-Remote-Code-Execution-Proof-Of-Concept.html No Types Assigned


 
http://packetstormsecurity.com/files/158054/SMBleed-SMBGhost-Pre-Authentication-Remote-Code-Execution-Proof-Of-Concept.html Third Party Advisory, VDB Entry

CWE Remap by NIST 7/21/2021 7:39:23 AM

Action Type Old Value New Value
Changed CWE 
CWE-20



CWE-119


CVE Modified by Microsoft Corporation 6/11/2020 3:15:09 PM

Action Type Old Value New Value
Added Reference 
http://packetstormsecurity.com/files/158054/SMBleed-SMBGhost-Pre-Authentication-Remote-Code-Execution-Proof-Of-Concept.html [No Types Assigned]

CVE Modified by Microsoft Corporation 6/02/2020 12:15:09 PM

Action Type Old Value New Value
Added Reference 
http://packetstormsecurity.com/files/157901/Microsoft-Windows-SMBGhost-Remote-Code-Execution.html [No Types Assigned]

CVE Modified by Microsoft Corporation 4/06/2020 5:15:13 PM

Action Type Old Value New Value
Added Reference 
http://packetstormsecurity.com/files/157110/SMBv3-Compression-Buffer-Overflow.html [No Types Assigned]

CVE Modified by Microsoft Corporation 3/31/2020 1:15:26 PM

Action Type Old Value New Value
Added Reference 
http://packetstormsecurity.com/files/156980/Microsoft-Windows-10-SMB-3.1.1-Local-Privilege-Escalation.html [No Types Assigned]

Initial Analysis by NIST 3/16/2020 9:04:22 AM

Action Type Old Value New Value
Added CVSS V3.1 
NIST AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Added CVSS V2 
NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Added CWE 
NIST CWE-20
Added CPE Configuration 
OR
 *cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*
 *cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*
 *cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*
 *cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*
Changed Reference Type 
http://packetstormsecurity.com/files/156731/CoronaBlue-SMBGhost-Microsoft-Windows-10-SMB-3.1.1-Proof-Of-Concept.html No Types Assigned


 
http://packetstormsecurity.com/files/156731/CoronaBlue-SMBGhost-Microsoft-Windows-10-SMB-3.1.1-Proof-Of-Concept.html Third Party Advisory
Changed Reference Type 
http://packetstormsecurity.com/files/156732/Microsoft-Windows-SMB-3.1.1-Remote-Code-Execution.html No Types Assigned


 
http://packetstormsecurity.com/files/156732/Microsoft-Windows-SMB-3.1.1-Remote-Code-Execution.html Third Party Advisory
Changed Reference Type 
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0796 No Types Assigned


 
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0796 Patch, Vendor Advisory

CVE Modified by Microsoft Corporation 3/15/2020 12:15:14 PM

Action Type Old Value New Value
Added Reference 
http://packetstormsecurity.com/files/156731/CoronaBlue-SMBGhost-Microsoft-Windows-10-SMB-3.1.1-Proof-Of-Concept.html [No Types Assigned]
Added Reference 
http://packetstormsecurity.com/files/156732/Microsoft-Windows-SMB-3.1.1-Remote-Code-Execution.html [No Types Assigned]

Quick Info

CVE Dictionary Entry:
CVE-2020-0796
NVD Published Date:
03/12/2020
NVD Last Modified:
06/16/2026
Source:
Microsoft Corporation