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Vulnerability record · CVE-2020-1206 · published 9 June 2020

CVE-2020-1206: Microsoft windows 10 use of uninitialized resource vulnerability

Microsoft · Windows 10

An information disclosure vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests, aka 'Windows SMBv3 Client/Server Information Disclosure Vulnerability'.

7.5 CVSS 3.1 High EPSS 10% · top 4.4% CWE-908 · Use of uninitialized resource
7.5CVSS 3.1 base score, v2 5.0
10%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

An information disclosure vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests, aka 'Windows SMBv3 Client/Server Information Disclosure Vulnerability'.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/158053/SMBleed-Uninitialized-Kernel-Memory-Read-Proof-Of-Concept.html Technical Description
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1206 PatchVendor Advisory
http://packetstormsecurity.com/files/158053/SMBleed-Uninitialized-Kernel-Memory-Read-Proof-Of-Concept.html Technical Description
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1206 PatchVendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-1206), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.