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CRITICAL CISA KEV

CVE-2020-0796

CVSS v3

10

CRITICAL

EPSS Score

99.8 %

exploit probability, as of 2026-10-19

CISA KEV

Yes

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2020-0796 yet.

Full record on NVD

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'.

CISA Known Exploited Vulnerability

Date Added
2022-02-10
Patch Due Date
2022-08-10
Ransomware Use
Known

Technical details

Published
2020-03-12

Frequently asked questions

What is CVE-2020-0796?

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'.

Is CVE-2020-0796 actively exploited?

Yes. CVE-2020-0796 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-08-10.

What is the CVSS score for CVE-2020-0796?

CVE-2020-0796 has a CVSS v3 base score of 10 (CRITICAL severity).

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