CVE-2025-53786
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CVSS Score
V3.1Attack Vector Metrics
Impact Metrics
Description
No description available
Available Exploits
Related News
A critical vulnerability in Microsoft Exchange Server remains unpatched on nearly 30,000 systems worldwide, raising concerns about potential exploitation in hybrid cloud environments. The vulnerability, tracked as CVE-2025-53786, affects Exchange 2016, Exchan…
CISA has issued an emergency directive ordering all Federal Civilian Executive Branch (FCEB) agencies to mitigate a critical Microsoft Exchange hybrid vulnerability tracked as CVE-2025-53786 by Monday morning at 9:00 AM ET. [...]
Frequently asked questions about CVE-2025-53786, an elevation of privilege vulnerability affecting Microsoft Exchange Server Hybrid Deployments.BackgroundTenable’s Research Special Operations (RSO) team has compiled this blog to answer Frequently Asked Questi…
Microsoft has released an advisory for a high-severity security flaw affecting on-premise versions of Exchange Server that could allow an attacker to gain elevated privileges under certain conditions. The vulnerability, tracked as CVE-2025-53786, carries a CV…
“In an Exchange hybrid deployment, an attacker who first gains administrative access to an on-premises Exchange server could potentially escalate privileges within the organization’s connected cloud environment without leaving easily detectable and auditable …
Affected Products
Affected Versions:
Affected Versions:
Affected Versions:
Affected Versions:
EU Vulnerability Database
Monitored by ENISA for EU cybersecurity
ENISA Analysis
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.
Affected Products (ENISA)
ENISA Scoring
CVSS Score (3.1)
EPSS Score
ENISA References
Data provided by ENISA EU Vulnerability Database. Last updated: August 15, 2025
GitHub Security Advisories
Community-driven vulnerability intelligence from GitHub
Advisory Details
CVSS Scoring
CVSS Score
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
References
Advisory provided by GitHub Security Advisory Database. Published: August 6, 2025, Modified: August 6, 2025
Social Media Intelligence
Real-time discussions and threat intelligence from social platforms
Another Tenable L For those of you scrambling because you think your exchange servers are vulnerable to a 10.0 CVSS CVE (CVE-2025-53786), don't worry. Tenable is wrong and completely ignored the actual advisory versions. Over a week later and problem still there.
Kritinis pažeidžiamumas „Microsoft Exchange Server“ „Microsoft“ paskelbė aukštos rizikos saugumo spragą Exchange Server lokalioms versijoms (CVE-2025-53786) su CVSS balu 8.0. Ši klaida gali leisti atakantiesiems įgyti padidintas privilegijas hibridiniuose diegimuose. Kreipiam dėmesį į Dirk-jan Mollema iš Outsider Security už nustatymą. Skaitom: [https://thehackernews.com/2025/08/microsoft-discloses-exchange-server.html](https://thehackernews.com/2025/08/microsoft-discloses-exchange-server.html)
CVE-2025-53786: Microsoft Exchange Server Security Vulnerability in Hybrid Deployments
Security Watch 8/15/25 On K12TechPro, we've launched a weekly cyber threat intelligence and vulnerability newsletter with NTP and K12TechPro. We'll post the "public" news to k12sysadmin from each newsletter. For the full "k12 techs only" portion (no middle schoolers, bad guys, vendors, etc. allowed), log into [k12techpro.com](http://k12techpro.com) and visit the …
🚨 Microsoft August Patch Tuesday — 107 flaws, 13 critical Microsoft patched **107 vulnerabilities** this month — **13 are critical**. 💥 Notable issues: * Exchange CVE-2025-53786 — risk of lateral movement to cloud platforms. * SharePoint CVE-2025-49712 — potential chaining with bypasses for full compromise. * Kerberos flaws with credential …
Check me on CVE-2025-53786 If we never installed or configured hybrid, are we vulnerable?
CISA Emergency Directive: CVE-2025-53786 in Microsoft Hybrid Exchange – Potential Total Domain Compromise CISA has issued ED 25-02 for a **high-severity privilege escalation flaw** in Microsoft Exchange hybrid deployments. Attackers with **on-prem admin access** could escalate into **Exchange Online** by exploiting shared service principal configs — evading detection. 🔹 **Mitigation …
Cybersecurity Roundup, Top Cybersecurity News updates!! * **Manpower** confirms breach affecting 144K+ individuals, tied to RansomHub claims. * **CISA** adds 3 exploited vulnerabilities to KEV: Internet Explorer, Microsoft Excel, WinRAR. * **Wikipedia** loses legal challenge to UK Online Safety Act — age checks still uncertain. * **Exchange hybrid flaw (CVE-2025-53786)** …
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