CVE-2021-41349

Microsoft Exchange Server Spoofing Vulnerability

Description

Microsoft Exchange Server Spoofing Vulnerability

6.5

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 91.44% Top 5%

Vendor Advisory microsoft.com

Affected: Microsoft Microsoft Exchange Server 2013 Cumulative Update 23

Affected: Microsoft Microsoft Exchange Server 2016 Cumulative Update 21

Affected: Microsoft Microsoft Exchange Server 2019 Cumulative Update 10

Affected: Microsoft Microsoft Exchange Server 2016 Cumulative Update 22

Affected: Microsoft Microsoft Exchange Server 2019 Cumulative Update 11

References

Link	Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41349	patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-41349?: CVE-2021-41349 has been scored as a medium severity vulnerability.
How to fix CVE-2021-41349?: To fix CVE-2021-41349, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-41349 being actively exploited in the wild?: It is possible that CVE-2021-41349 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~91% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-41349?: CVE-2021-41349 affects Microsoft Microsoft Exchange Server 2013 Cumulative Update 23, Microsoft Microsoft Exchange Server 2016 Cumulative Update 21, Microsoft Microsoft Exchange Server 2019 Cumulative Update 10, Microsoft Microsoft Exchange Server 2016 Cumulative Update 22, Microsoft Microsoft Exchange Server 2019 Cumulative Update 11.

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