10.0
Critical
CVE-2020-0796 Microsoft SMBv3 Remote Code Execution Vulnerability
Active exploitation observed
· CISA KEV catalogue
Required action
Apply updates per vendor instructions.
Ransomware campaigns
Known to be used
Weakness
CWE-119
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'.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 10 Version 1903 for 32-bit Systems | Versions not published | |
| Windows 10 Version 1903 for x64-based Systems | Versions not published | |
| Windows 10 Version 1903 for ARM64-based Systems | Versions not published | |
| Windows Server, version 1903 (Server Core installation) | Versions not published | |
| Windows 10 Version 1909 for 32-bit Systems | Versions not published | |
| Windows 10 Version 1909 for x64-based Systems | Versions not published | |
| Windows 10 Version 1909 for ARM64-based Systems | Versions not published | |
| Windows Server, version 1909 (Server Core installation) | Versions not published |
Other CVEs of Windows 10 Version 1903 for 32-bit Systems
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CVE-2020-17162
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CVE-2020-17140
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High
CVE-2020-17139
Windows Overlay Filter Security Feature Bypass Vulnerability
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CVE-2020-17136
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