CVE-2021-42305: Microsoft Exchange Server Spoofing Vulnerability
First published: Wed Nov 10 2021(Updated: )
Microsoft Exchange Server Spoofing Vulnerability
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| =2013-cumulative_update_23 | ||
| =2016-cumulative_update_21 | ||
| =2016-cumulative_update_22 | ||
| =2019-cumulative_update_10 | ||
| =2019-cumulative_update_11 | ||
| Microsoft Exchange Server | =2013-cumulative_update_23 | |
| Microsoft Exchange Server | =2016-cumulative_update_21 | |
| Microsoft Exchange Server | =2016-cumulative_update_22 | |
| Microsoft Exchange Server | =2019-cumulative_update_10 | |
| Microsoft Exchange Server | =2019-cumulative_update_11 |
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Frequently Asked Questions
What is CVE-2021-42305?
CVE-2021-42305 is a Spoofing Vulnerability in Microsoft Exchange Server.
What versions of Microsoft Exchange Server are affected by CVE-2021-42305?
CVE-2021-42305 affects Microsoft Exchange Server 2013 Cumulative Update 23, 2016 Cumulative Update 21 and 22, and 2019 Cumulative Update 10 and 11.
What is the severity of CVE-2021-42305?
CVE-2021-42305 has a severity rating of 6.5 (Medium).
How can I fix CVE-2021-42305?
To fix CVE-2021-42305, it is recommended to apply the necessary security updates provided by Microsoft.
Where can I find more information about CVE-2021-42305?
You can find more information about CVE-2021-42305 on the Microsoft Security Guidance Advisory page: [https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42305](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42305).
- agent/type
- agent/first-publish-date
- agent/author
- agent/softwarecombine
- agent/description
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- agent/title
- agent/references
- agent/severity
- agent/event
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/tags
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-index
- vendor/microsoft
- canonical/microsoft exchange server
- version/microsoft exchange server/2013-cumulative_update_23
- version/microsoft exchange server/2016-cumulative_update_21
- version/microsoft exchange server/2016-cumulative_update_22
- version/microsoft exchange server/2019-cumulative_update_10
- version/microsoft exchange server/2019-cumulative_update_11