CVE-2022-41040 | Microsoft Exchange Server Elevation of Privilege Vulnerability

Exp

Microsoft Exchange Server Elevation of Privilege Vulnerability

Published: 2022-10-02 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-41040 is rated Critical Active Threat (100/100): CVSS High severity, with high exploitation likelihood (EPSS 99.94%, 100th percentile). CISA KEV confirms active exploitation (added 2022-09-30) affecting Microsoft / Exchange Server. a weakness (CWE-918) Unauthenticated remote administrative access may be possible. EPSS rose +5.80% over the last day, indicating growing attacker interest. 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-2022-41040

Name: Microsoft Exchange Server Server-Side Request Forgery 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-2022-41040

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

Exploit prediction scoring system (EPSS) score for CVE-2022-41040

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 2026-06-15 94.15% 99.94% +5.80%
2 2026-05-25 94.22% 94.15% -0.08%
3 2026-05-23 — 94.22% —

Full EPSS history (68 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-41040

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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.
 2.8 5.9 [email protected]

Weakness enumeration for CVE-2022-41040

Affected software / configurations for CVE-2022-41040

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-2022-41040

cvelogic Threat Intelligence