VDB
CVE-2021-33766
CVE-2021-33766
PUBLISHED
KEV
CVSS 8.699999809265137 HIGH
Microsoft Exchange Server ist das Serverprodukt für das Client-Server Groupware- und Nachrichtensystem der Firma Microsoft.
EPSS 98.14% · 99.9th percentile
Risk Scores
CVSS 4.0
8.699999809265137
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS Score
98.14%
99.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 8 | |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 19 | |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 20 | |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 9 | |
| Microsoft | Microsoft Exchange Server 2013 Cumulative Update 23 |
Timeline
- CVE Published
- Jan 19, 1970 VulnCheck XDB Entry
- Jan 19, 1970 VulnCheck XDB Entry
- Apr 13, 2021 PoC Published
- Jul 15, 2021 EPSS Score
- Jul 17, 2021 EPSS Score
- Aug 30, 2021 PoC Published
- Sep 1, 2021 EPSS Score
- Sep 23, 2021 PoC Published
- Dec 21, 2021 VulnCheck KEV Exploitation
- Jan 18, 2022 CISA KEV Added
- Jan 18, 2022 VulnCheck KEV Exploitation
References
- Nuclei Template exploit
- https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2024-1897.json advisory
- https://www.cisa.gov/news-events/alerts/2024/08/21/cisa-adds-four-known-exploited-vulnerabilities-catalog exploit
- https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-1897 advisory
- https://msrc.microsoft.com/update-guide advisory
- https://www.rapid7.com/blog/post/2021/08/12/proxyshell-more-widespread-exploitation-of-microsoft-exchange-servers/ exploit
- https://thehackernews.com/2021/08/new-microsoft-exchange-proxytoken-flaw.html advisory