CVE-2021-31207
Microsoft Exchange Server Security Feature Bypass Vulnerability
6.6
CVSS 3.1
99.8 %
EPSS (current)
2021-11-03
KEV addition
Yes
Ransomware
Timeline
Publication, first public exploit and KEV addition on a day axis.
Key facts
Vendor / product: Microsoft / Exchange Server
Published: 2021-05-11 · Due (CISA): 2021-11-17
CWE: CWE-434 · EU list: no
Exploit references (metadata only)
| Source | Reference | Title | Date |
|---|---|---|---|
| metasploit | exploit/windows/http/exchange_proxyshell_rce | exploit/windows/http/exchange_proxyshell_rce | 2021-04-06 |
References only — no downloads or instructions.