Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2025-53786— Microsoft Exchange Server Hybrid Deployment Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft Microsoft Exchange Server 2016 Cumulative Update 23
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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存在授权问题漏洞，该漏洞源于混合部署配置不当，可能导致安全风险。

CVSS 8.0 · High EPSS 7.71% · P94

Possible ATT&CK Techniques 2 AI

T1136 · Create Account T1510
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-53786

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Microsoft Exchange Server Hybrid Deployment Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
On April 18th 2025, Microsoft announced Exchange Server Security Changes for Hybrid Deployments and accompanying non-security Hot Fix. Microsoft made these changes in the general interest of improving the security of hybrid Exchange deployments. Following further investigation, Microsoft identified specific security implications tied to the guidance and configuration steps outlined in the April announcement. Microsoft is issuing CVE-2025-53786 to document a vulnerability that is addressed by taking the steps documented with the April 18th announcement. Microsoft strongly recommends reading the information, installing the April 2025 (or later) Hot Fix and implementing the changes in your Exchange Server and hybrid environment.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Exchange Server 授权问题漏洞
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存在授权问题漏洞，该漏洞源于混合部署配置不当，可能导致安全风险。
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

Vendor Product Affected Versions CPE Subscribe
Microsoft Microsoft Exchange Server 2016 Cumulative Update 23 15.01.0.0 ~ 15.01.2507.055 -
Microsoft Microsoft Exchange Server 2019 Cumulative Update 14 15.02.0.0 ~ 15.02.1544.025 -
Microsoft Microsoft Exchange Server 2019 Cumulative Update 15 15.02.0.0 ~ 15.02.1748.024 -
Microsoft Microsoft Exchange Server Subscription Edition RTM 15.02.0.0 ~ 15.02.2562.017 -

II. Public POCs for CVE-2025-53786

# POC Description Source Link Shenlong Link
1 None https://github.com/barbaraeivyu/CVE-2025-53786 POC Details
2 None https://github.com/vincentdthe/CVE-2025-53786 POC Details
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-53786

请登录查看更多情报信息。

IV. Related Vulnerabilities

Same product: Microsoft Exchange Server 2016 Cumulative Update 23
Same vendor: Microsoft
Same weakness: CWE-287

V. Comments for CVE-2025-53786

No comments yet

Leave a comment