Is CVE-2020-0796 actively exploited?

CVE-2020-0796 has no public evidence of in-the-wild exploitation as of 2025-10-29.

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

CVE-2020-0796 has a CVSS score of 10 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

How do I patch CVE-2020-0796?

Patch guidance is available from microsoft security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2020-0796.

Fix CVE-2020-0796 - CRITICAL microsoft windows 10 1903

Q: Which products are affected by CVE-2020-0796?

8 products: microsoft windows 10 1903, microsoft windows 10 1903, microsoft windows 10 1903, microsoft windows 10 1909, microsoft windows 10 1909, and 3 more.

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 Metrics

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 Action: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-119 · Memory Buffer Errors CWE-119 · Memory Buffer Errors

Metadata

Primary Vendor: MICROSOFT
Published: 3/12/2020
Last Modified: 10/29/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

microsoft : windows_10_1903microsoft : windows_10_1903microsoft : windows_10_1903microsoft : windows_10_1909microsoft : windows_10_1909microsoft : windows_10_1909microsoft : windows_server_1903microsoft : windows_server_1909

Remediation Guidance

Executive Summary

View on NIST NVD