Buffer overflow in Microsoft Exchange Server - CVE-2020-16875

 

Buffer overflow in Microsoft Exchange Server - CVE-2020-16875

Published: September 8, 2020 / Updated: October 27, 2020


Vulnerability identifier: #VU46401
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber
CVE-ID: CVE-2020-16875
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: Public exploit is available
Vendor: Microsoft
Affected software:
Microsoft Exchange Server

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing email messages. A remote attacker can send as specially crafted email to the Exchange server, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


How to mitigate CVE-2020-16875

Install updates from vendor's website.

Sources