CVE-2022-41082 | Microsoft Exchange Server Remote Code Execution Vulnerability

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Microsoft Exchange Server Remote Code Execution Vulnerability

Published: 2022-10-03 Last update: 2025-10-30 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-41082 is rated Critical Active Threat (92/100): CVSS High severity, with high exploitation likelihood (EPSS 90.99%, 100th percentile). CISA KEV confirms active exploitation (added 2022-09-30) affecting Microsoft / Exchange Server. a weakness (CWE-502) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2022-41082

Name: Microsoft Exchange Server Remote Code Execution Vulnerability · CISA KEV detail

Exploit added: 2022-09-30

Action due: 2022-10-21

Required action: Apply updates per vendor instructions.

Public exploit references (Exploit-DB) for CVE-2022-41082

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2022-41082

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-04 90.86% 90.99% +0.12%
2 2026-06-01 90.71% 90.86% +0.15%
3 2026-05-25 — 90.71% —

Full EPSS history (128 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-41082

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.0 3.1 HIGH
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.1 5.9 [email protected]

Weakness enumeration for CVE-2022-41082

Affected software / configurations for CVE-2022-41082

Vendor Product Version Raw CPE
microsoft exchange_server 2013 cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*
microsoft exchange_server 2016 cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_22:*:*:*:*:*:*
microsoft exchange_server 2016 cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_23:*:*:*:*:*:*
microsoft exchange_server 2019 cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_11:*:*:*:*:*:*
microsoft exchange_server 2019 cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_12:*:*:*:*:*:*

References for CVE-2022-41082

URL Tags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41082 Vendor Advisory
http://packetstormsecurity.com/files/170066/Microsoft-Exchange-ProxyNotShell-Remote-Code-Execution.html Exploit Third Party Advisory VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-41082 Patch Vendor Advisory
https://www.kb.cert.org/vuls/id/915563 Third Party Advisory US Government Resource
https://www.secpod.com/blog/microsoft-november-2022-patch-tuesday-patches-65-vulnerabilities-including-6-zero-days/ Third Party Advisory
https://www.vicarius.io/vsociety/posts/cve-2022-41082-microsoft-exchange-server-remote-code-execution-vulnerability-detection-script Third Party Advisory
https://www.vicarius.io/vsociety/posts/cve-2022-41082-microsoft-exchange-server-remote-code-execution-vulnerability-mitigation-script Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-41082 US Government Resource
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