CVE-2022-41082

HIGH8.0

CISA KEV

Published 2022-10-03 · Updated 2026-06-17 · Source secure@microsoft.com

Summary

CVE-2022-41082 is a high-severity (CVSS 8.0) vulnerability in Microsoft Exchange Server. CISA added it to the Known Exploited Vulnerabilities catalog on September 30, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by October 21, 2022. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.

All 390 known-exploited Microsoft vulnerabilities →

Description

Microsoft Exchange Server Remote Code Execution Vulnerability

CVSS vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-502CWE-502

CISA Known-Exploited Vulnerability

Product: Microsoft — Exchange Server

Name: Microsoft Exchange Server Remote Code Execution Vulnerability

Date added: 2022-09-30 · Due: 2022-10-21

USED IN RANSOMWARE

Required action: Apply updates per vendor instructions.

References

View on NVD

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