HIGH 8.0 Microsoft PoC
CVE-2025-53786
Microsoft Exchange Server Hybrid Deployment Elevation of Privilege Vulnerability
Microsoft Security Update 2025-Aug: Microsoft Exchange Server Hybrid Deployment Elevation of Privilege Vulnerability
Affected Products
- Microsoft Exchange Server Subscription Edition RTM
- Microsoft Exchange Server 2019 Cumulative Update 15
- Microsoft Exchange Server 2016 Cumulative Update 23
- Microsoft Exchange Server 2019 Cumulative Update 14
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53786
- https://nvd.nist.gov/vuln/detail/CVE-2025-53786
This high severity vulnerability with a CVSS score of 8.0 was published on 2025-08-12 via Microsoft. 🚨 A public proof-of-concept exploit is available on GitHub. EPSS score: 7.4% (top 6% of all CVEs by exploitation probability). Affected: Microsoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server 2016 Cumulative Update 23 and 1 more.
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