Input validation error in Microsoft Windows and Windows Server - CVE-2020-1301
Published: June 9, 2020 / Updated: April 27, 2023
Vulnerability identifier: #VU28868
CSH Severity: Medium
CVSS v4: 7.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-1301
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists due to the way that the Microsoft Server Message Block 1.0 (SMBv1) server handles certain requests. A remote authenticated attacker can send a specially crafted packet to a targeted SMBv1 server and execute arbitrary code on the target system.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2020-1301
Install updates from vendor's website.