CVE-2020-0796

critical
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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'.

References

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

http://packetstormsecurity.com/files/156731/CoronaBlue-SMBGhost-Microsoft-Windows-10-SMB-3.1.1-Proof-Of-Concept.html

http://packetstormsecurity.com/files/156732/Microsoft-Windows-SMB-3.1.1-Remote-Code-Execution.html

http://packetstormsecurity.com/files/156980/Microsoft-Windows-10-SMB-3.1.1-Local-Privilege-Escalation.html

http://packetstormsecurity.com/files/157110/SMBv3-Compression-Buffer-Overflow.html

http://packetstormsecurity.com/files/157901/Microsoft-Windows-SMBGhost-Remote-Code-Execution.html

http://packetstormsecurity.com/files/158054/SMBleed-SMBGhost-Pre-Authentication-Remote-Code-Execution-Proof-Of-Concept.html

Details

Source: MITRE

Published: 2020-03-12

Updated: 2021-07-21

Type: CWE-20

Risk Information

CVSS v2

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH

CVSS v3

Base Score: 10

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Impact Score: 6

Exploitability Score: 3.9

Severity: CRITICAL

Tenable Plugins

View all (4 total)

IDNameProductFamilySeverity
135177Microsoft Windows SMBv3 Compression RCE (ADV200005)(CVE-2020-0796)(Remote)NessusWindows
critical
134428KB4551762: Windows 10 Version 1903 and Windows 10 Version 1909 OOB Security Update (ADV200005)(CVE-2020-0796)NessusWindows : Microsoft Bulletins
critical
134421Microsoft Windows SMBv3 Compression RCE (ADV200005)(CVE-2020-0796)(Remote)NessusWindows
critical
134420Microsoft Windows SMBv3 Compression RCE (ADV200005)(CVE-2020-0796)(Deprecated)NessusWindows
critical