CVE-2020-1206

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'.

Affected

Microsoft · Windows 10 Version 1909 for 32-bit Systems · Windows 10 Version 1909 for x64-based Systems · Windows 10 Version 1909 for ARM64-based Systems · Windows Server, version 1909 (Server Core installation) · Windows 10 Version 1903 for 32-bit Systems · Windows 10 Version 1903 for x64-based Systems

CVSS v3.1 NVD

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

CVSS v2.0 NVD

5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS

10.48% chance of exploitation in the next 30 days, 96th percentile

Published

2020-06-09

Updated

2024-08-04

Proof-of-concept exploits (8)

• http://packetstormsecurity.com/files/158053/SMBleed-Uninitialized-Kernel-Memory-Read-Proo…
• ZecOps/CVE-2020-0796-RCE-POC571★ · 2020-06-09
• ZecOps/CVE-2020-1206-POC144★ · 2020-06-09
• datntsec/CVE-2020-12060★ · 2021-01-13
• jamf/CVE-2020-0796-RCE-POC571★ · 2020-06-09
• jamf/CVE-2020-1206-POC144★ · 2020-06-09
• manoz00/mm0★ · 2026-10-15
• zathizh/cve-796-mit0★ · 2020-06-21

Security advisories

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1206

References

• CVE Record
• NVD entry

Related

• CVE-2018-4124
• CVE-2020-0796
• CVE-2019-12735
• CVE-2019-13272