CVE-2021-34473
9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C
Summary
Microsoft Exchange Server Remote Code Execution Vulnerability
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Microsoft | Microsoft Exchange Server 2013 Cumulative Update 23 | 15.00.0 < 15.00.1497.015 | affected |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 9 | 15.02.0 < 15.02.0858.010 | affected |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 20 | 15.01.0 < 15.01.2242.008 | affected |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 19 | 15.01.0 < 15.01.2176.012 | affected |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 8 | 15.02.0 < 15.02.0792.013 | affected |
Weaknesses
- Remote Code Execution
ADP Enrichment
CVE Program Container
Additional References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34473
- https://www.zerodayinitiative.com/advisories/ZDI-21-821/
- http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html
CISA ADP Vulnrichment
- SSVC:
- Exploitation: active
- Automatable: yes
- Technical Impact: total
Additional References
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34473
- https://www.zerodayinitiative.com/advisories/ZDI-21-821/
- http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.