Critical severity · published Mar 12, 2020
CVE-2020-0796
Microsoft SMBv3 Remote Code Execution Vulnerability
RansomwareIn wildKEV
10.0
CVSS
99.8%
EPSS
Yes
On KEV
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'.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)99.8% · higher than 100% of CVEs
Exploited in the wildYes
CISA KEVListed Feb 10, 2022
Federal remediation dueAug 10, 2022
Ransomware campaign useKnown
Affected products
Which versions
W1
Windows 10 Version 1903 for 32-bit Systems · Microsoft
All versions, or not specified · source: vendor
W1
Windows 10 Version 1903 for ARM64-based Systems · Microsoft
All versions, or not specified · source: vendor
W1
Windows 10 Version 1903 for x64-based Systems · Microsoft
All versions, or not specified · source: vendor
W1
Windows 10 Version 1909 for 32-bit Systems · Microsoft
All versions, or not specified · source: vendor
W1
Windows 10 Version 1909 for ARM64-based Systems · Microsoft
All versions, or not specified · source: vendor
W1
Windows 10 Version 1909 for x64-based Systems · Microsoft
All versions, or not specified · source: vendor
WS
Windows Server, version 1903 (Server Core installation) · Microsoft
All versions, or not specified · source: vendor
WS
Windows Server, version 1909 (Server Core installation) · Microsoft
All versions, or not specified · source: vendor
W1
Windows 10 1903 · Microsoft
All versions, or not specified · source: NVD
W1
Windows 10 1909 · Microsoft
All versions, or not specified · source: NVD
WS
Windows Server 1903 · Microsoft
All versions, or not specified · source: NVD
WS
Windows Server 1909 · Microsoft
All versions, or not specified · source: NVD
Affected product
W1
Windows 10 Version 1903 for 32-bit Systems
Microsoft
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-0796
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-0796
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
x_refsource_MISC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0796
x_refsource_MISC
http://packetstormsecurity.com/files/156731/CoronaBlue-SMBGhost-Microsoft-Windows-10-SMB-3.1.1-Proof-Of-Concept.html
x_refsource_MISC
http://packetstormsecurity.com/files/156732/Microsoft-Windows-SMB-3.1.1-Remote-Code-Execution.html
x_refsource_MISC
http://packetstormsecurity.com/files/156980/Microsoft-Windows-10-SMB-3.1.1-Local-Privilege-Escalation.html
x_refsource_MISC
http://packetstormsecurity.com/files/157110/SMBv3-Compression-Buffer-Overflow.html
x_refsource_MISC
http://packetstormsecurity.com/files/157901/Microsoft-Windows-SMBGhost-Remote-Code-Execution.html
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