Vulnerability identifier: #VU58055

Vulnerability risk: Critical

CVSSv3.1: 9.5 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2021-42321

CWE-ID: CWE-20

Exploitation vector: Network

Exploits in database: 4

• November 16, 2022
  • exch_CVE-2021-42321 () [Github]
• August 19, 2022
  • Microsoft Exchange Server ChainedSerializationBinder RCE [Metasploit]
• May 12, 2022
  • Microsoft Exchange Server ChainedSerializationBinder Deny List Typo RCE [Metasploit]
• January 6, 2022
  • CVE-2021-42321_poc () [Github]

Impact: Code execution

Vulnerable software:
Microsoft Exchange Server
Server applications / Mail servers

Vendor: Microsoft