CVE Watch—

CVE-2022-41082

Microsoft Exchange Server Remote Code Execution Vulnerability

CVSS

—

No CVSS

EPSS

100.0%

p100

KEV

YES

Sep 30, 2022

Exploit Today

0-100

Published: — · Last modified: —

EPSS · 30d

100.0%EPSS · 30 days100.0%

2026-06-302026-07-16

KEV catalog record

Product

Microsoft / Exchange Server

Vulnerability

Microsoft Exchange Server Remote Code Execution Vulnerability

Added to KEV

Sep 30, 2022

Remediate by

Oct 21, 2022

Known ransomware use

Yes

Summary description

Microsoft Exchange Server contains an unspecified vulnerability that allows for authenticated remote code execution. Dubbed "ProxyNotShell," this vulnerability is chainable with CVE-2022-41040 which allows for the remote code execution.

Required action

Apply updates per vendor instructions.

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-2022-41082

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