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: 9.3 [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]
CVE-ID: CVE-2020-16875
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
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.
Affected software
Microsoft Exchange Server
How to mitigate CVE-2020-16875
Install updates from vendor's website.
Links to Public Exploits and PoC-codes
- Exploit #4744 - Microsoft Exchange Server DlpUtils AddTenantDlpPolicy Remote Code Execution Vulnerability [PSRemoting] (October 27, 2020)
- Exploit #4721 - Microsoft Exchange Server DlpUtils AddTenantDlpPolicy Remote Code Execution Vulnerability (October 19, 2020)
- Exploit #4624 - Microsoft Exchange Server DlpUtils AddTenantDlpPolicy RCE (September 17, 2020)