How severe is CVE-2022-41040?

CVE-2022-41040 has a CVSS 3.1 base score of 8.8 (HIGH). EPSS estimates a 100.0% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2022-41040: Microsoft Exchange Server Elevation of Privilege

CISA Known Exploited Vulnerabilities

Microsoft Exchange Server Server-Side Request Forgery Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-09-30

Remediation due

2022-10-21

Ransomware

Known use

Required action
Apply updates per vendor instructions.

CISA notes
https://msrc-blog.microsoft.com/2022/09/29/customer-guidance-for-reported-zero-day-vulnerabilities-in-microsoft-exchange-server/; https://nvd.nist.gov/vuln/detail/CVE-2022-41040

Description

Microsoft Exchange Server Elevation of Privilege Vulnerability

Severity

CVSS 3.1 · CNA8.8 HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
Microsoft	Microsoft Exchange Server 2013 Cumulative Update 23	15.00.0 to <15.00.1497.044
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 22	15.0.0 to <15.01.2375.037
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 11	15.02.0 to <15.02.0986.036
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 12	15.02.0 to <15.02.1118.020
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 23	15.01.0 to <15.01.2507.016

References

5 Links

Vendor advisories

Microsoft Exchange Server Elevation of Privilege Vulnerability

Third-party advisories

VU#915563

Other references

Record Details

Published

2022-10-03

Last updated

2025-10-21

Assigner (CNA)

microsoft

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.