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CVE-2026-45583— Microsoft Exchange Server Remote Code Execution Vulnerability

CVSS 7.5 · High EPSS 0.43% · P34

Affected Version Matrix 4

VendorProductVersion RangeStatus
MicrosoftMicrosoft Exchange Server 2016 Cumulative Update 2315.01.0.0< 15.01.2507.069affected
MicrosoftMicrosoft Exchange Server 2019 Cumulative Update 1415.02.0.0< 15.02.1544.041affected
MicrosoftMicrosoft Exchange Server 2019 Cumulative Update 1515.02.0.0< 15.02.1748.046affected
MicrosoftMicrosoft Exchange Server Subscription Edition RTM15.02.0.0< 15.02.2562.043affected
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I. Basic Information for CVE-2026-45583

Vulnerability Information
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Vulnerability Title
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Improper control of generation of code ('code injection') in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft Exchange Server 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Exchange Server是美国微软（Microsoft）公司的一套电子邮件服务程序。它提供邮件存取、储存、转发，语音邮件，邮件过滤筛选等功能。 Microsoft Exchange Server存在代码注入漏洞。攻击者利用该漏洞可以远程执行代码。以下产品和版本受到影响：Microsoft Exchange Server 2016 Cumulative Update 23,Microsoft Exchange Server 2019 Cumulative Update 14,Mic
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
MicrosoftMicrosoft Exchange Server 2016 Cumulative Update 23 15.01.0.0 ~ 15.01.2507.069 -
MicrosoftMicrosoft Exchange Server 2019 Cumulative Update 14 15.02.0.0 ~ 15.02.1544.041 -
MicrosoftMicrosoft Exchange Server 2019 Cumulative Update 15 15.02.0.0 ~ 15.02.1748.046 -
MicrosoftMicrosoft Exchange Server Subscription Edition RTM 15.02.0.0 ~ 15.02.2562.043 -

II. Public POCs for CVE-2026-45583

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III. Intelligence Information for CVE-2026-45583

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Vendor Advisories for CVE-2026-45583 (1)

Same Patch Batch · Microsoft · 2026-06-09 · 200 CVEs total

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CVE-2026-476358.4 HIGHMicrosoft Outlook and Word Remote Code Execution Vulnerability
CVE-2026-454618.4 HIGHMicrosoft Office Remote Code Execution Vulnerability
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Showing top 20 of 200 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Microsoft Exchange Server 2016 Cumulative Update 23
Same vendor: Microsoft
Same weakness: CWE-94

V. Comments for CVE-2026-45583

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