Known Exploited Vulnerability
10.0
CRITICAL
CVE-2020-0796
Microsoft SMBv3 Remote Code Execution Vulnerabilit - [Actively Exploited]
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'.

INFO

Published Date :

March 12, 2020, 4:15 p.m.

Last Modified :

Feb. 4, 2025, 4:15 p.m.

Source :

secure@microsoft.com

Remotely Exploitable :

Yes !

Impact Score :

6.0

Exploitability Score :

3.9
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests. An attacker who successfully exploited the vulnerability could gain the ability to execute code on the target server or client.

Required Action :

Apply updates per vendor instructions.

Notes :

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

Public PoC/Exploit Available at Github

CVE-2020-0796 has a 328 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2020-0796 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Microsoft windows_10
2 Microsoft windows_server_2016
: Total Affected Vendor : 1 | Products : 2
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-0796.

URL Resource
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

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
lsc1226844309/hanker1

None

Updated: 1 week, 1 day ago
0 stars 0 fork 0 watcher
Born at : Feb. 15, 2025, 10:59 a.m. This repo has been linked 17 different CVEs too.
Profile Photo
Kaizzzo1/cve-2020-00796

None

Python

Updated: 3 weeks, 4 days ago
1 stars 0 fork 0 watcher
Born at : Jan. 29, 2025, 8:56 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
Kaizzzo1/CVE-2020-0796

None

Python

Updated: 3 weeks, 4 days ago
1 stars 0 fork 0 watcher
Born at : Jan. 29, 2025, 8:52 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
bividac161/mazda

None

C++ C

Updated: 3 weeks, 4 days ago
0 stars 0 fork 0 watcher
Born at : Jan. 29, 2025, 8:02 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
WhileEndless/NucleiTemplateDocumentation

None

Updated: 1 month ago
1 stars 0 fork 0 watcher
Born at : Jan. 22, 2025, 7:09 a.m. This repo has been linked 9 different CVEs too.
Profile Photo
tyroneml/tyroneml

None

Updated: 1 month, 1 week ago
0 stars 0 fork 0 watcher
Born at : Jan. 15, 2025, 3:39 p.m. This repo has been linked 2 different CVEs too.
Profile Photo
126789t/poc_everyday

自动搜集每天的漏洞poc和exp信息。

Updated: 1 week, 4 days ago
8 stars 2 fork 2 watcher
Born at : Dec. 11, 2024, 12:32 a.m. This repo has been linked 91 different CVEs too.
Profile Photo
fazilbaig1/oscp

oscp notes

Updated: 2 months ago
0 stars 0 fork 0 watcher
Born at : Dec. 9, 2024, 6:26 p.m. This repo has been linked 66 different CVEs too.
Profile Photo
by-roj/24_Vulnerability-Analysis-and-PoC-Reimplementation

Utilizing reverse engineering tools and a variety of programming languages

Updated: 2 months, 4 weeks ago
0 stars 0 fork 0 watcher
Born at : Nov. 22, 2024, 5:52 a.m. This repo has been linked 6 different CVEs too.
Profile Photo
RiderTimeDecade/fscan

fscan修改版

Go

Updated: 3 months ago
0 stars 0 fork 0 watcher
Born at : Nov. 20, 2024, 3:42 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
zzyss-marker/NetworkSecuritySelf-study

None

Python Batchfile PowerShell VBScript

Updated: 3 months ago
0 stars 0 fork 0 watcher
Born at : Nov. 19, 2024, 4:50 p.m. This repo has been linked 6 different CVEs too.
Profile Photo
HarshRajSinghania/smbvulnrecon

None

Python

Updated: 2 months, 4 weeks ago
0 stars 0 fork 0 watcher
Born at : Nov. 18, 2024, 9:33 a.m. This repo has been linked 5 different CVEs too.
Profile Photo
XiaomingX/awesome-poc-for-red-team

A curated collection of Proof of Concept (PoC) tools, scripts, and techniques designed for red team operations, penetration testing, and cybersecurity research. This repository focuses on providing practical resources for exploring vulnerabilities

attack cybersecurity exp hw penetration-testing poc red-team security-tools vulnerability-poc

Updated: 1 month ago
5 stars 2 fork 2 watcher
Born at : Nov. 17, 2024, 11:53 a.m. This repo has been linked 414 different CVEs too.
Profile Photo
BunNYb8989/Conti

RANSOMWARE LAB by Try hack me

Updated: 3 months, 2 weeks ago
1 stars 0 fork 0 watcher
Born at : Nov. 8, 2024, 6:32 a.m. This repo has been linked 3 different CVEs too.
Profile Photo
LuisMateo1/Cyber-Quests-Fall-2024-CTF-Challange

None

Updated: 3 months ago
0 stars 0 fork 0 watcher
Born at : Oct. 29, 2024, 3:11 p.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-0796 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-0796 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Feb. 04, 2025

    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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    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 secure@microsoft.com

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by nvd@nist.gov

    Apr. 22, 2022

    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 nvd@nist.gov

    Jul. 21, 2021

    Action Type Old Value New Value
    Changed CWE CWE-20 CWE-119
  • CVE Modified by secure@microsoft.com

    Jun. 11, 2020

    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 secure@microsoft.com

    Jun. 02, 2020

    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 secure@microsoft.com

    Apr. 06, 2020

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/157110/SMBv3-Compression-Buffer-Overflow.html [No Types Assigned]
  • CVE Modified by secure@microsoft.com

    Mar. 31, 2020

    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 nvd@nist.gov

    Mar. 16, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    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
    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:*:*:*:*:*:*:*
  • CVE Modified by secure@microsoft.com

    Mar. 15, 2020

    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]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

97.49 }} -0.00%

score

0.99987

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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