10
CVE-2021-34473
- EPSS 94.24%
- Published 14.07.2021 18:15:11
- Last modified 24.02.2025 15:47:44
- Source secure@microsoft.com
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Microsoft Exchange Server Remote Code Execution Vulnerability
Data is provided by the National Vulnerability Database (NVD)
Microsoft ≫ Exchange Server Version2013 Updatecumulative_update_23
Microsoft ≫ Exchange Server Version2016 Updatecumulative_update_19
Microsoft ≫ Exchange Server Version2016 Updatecumulative_update_20
Microsoft ≫ Exchange Server Version2019 Updatecumulative_update_8
Microsoft ≫ Exchange Server Version2019 Updatecumulative_update_9
03.11.2021: CISA Known Exploited Vulnerabilities (KEV) Catalog
Microsoft Exchange Server Remote Code Execution Vulnerability
VulnerabilityMicrosoft Exchange Server contains an unspecified vulnerability that allows for remote code execution.
DescriptionApply updates per vendor instructions.
Required actions| Type | Source | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 94.24% | 0.999 |
| Source | Base Score | Exploit Score | Impact Score | Vector string |
|---|---|---|---|---|
| nvd@nist.gov | 10 | 10 | 10 |
AV:N/AC:L/Au:N/C:C/I:C/A:C
|
| nvd@nist.gov | 9.8 | 3.9 | 5.9 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
|
| secure@microsoft.com | 9.1 | 3.9 | 5.2 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
|
CWE-918 Server-Side Request Forgery (SSRF)
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.