CVE Database · CVE-2021-34473
CVSS v3.1
9.1
EPSS
100.00%
Published
Jul 14, 2021
Modified
Oct 29, 2025
CISA Known Exploited Vulnerability
Added: 2021-11-03 · Due: 2021-11-17
Apply updates per vendor instructions.
Public PoC / Exploit (10)
All weaponized →Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
Description
Microsoft Exchange Server Remote Code Execution Vulnerability
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NWeaknesses (CWE)
Affected Products (5)
References (7)