CVE-2025-53786

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 identifi...

The vulnerability of Microsoft Exchange Server’s mail server, related to deficiencies in authentication procedures, allows attackers to escalate their privileges.

The vulnerability of Microsoft Exchange Server is related to deficiencies in authentication procedures. Exploiting this vulnerability can allow attackers to increase their privileges remotely...

Microsoft Discloses Exchange Server Flaw Enabling Silent Cloud Access in Hybrid Setups

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 CVSS score of 8.0. Dirk-jan Mollema wit...

Vulnerability fixed in Microsoft Exchange

Microsoft has fixed a vulnerability in Microsoft Exchange Server hybrid deployments. The vulnerability allows a user with administrative privileges on an on-premises Microsoft Exchange server to elevate privileges to the cloud. Microsoft has released a Hot Fix to fix the vulnerability. See attach...

Security Updates for Microsoft Exchange Server (April 2025)

The Microsoft Exchange Server installed on the remote host is missing a security update. It is, therefore, affected by a vulnerability as referenced in the April 2025 security bulletin. - Microsoft Exchange Server Hybrid Deployment Elevation of Privilege Vulnerability CVE-2025-53786 Note that...

CVE-2025-53786

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 identifi...

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

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

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CVE-2025-53786

CVE-2025-53786 is a high-severity issue affecting on-premises Microsoft Exchange Server in hybrid deployments. The connected documents confirm a privilege-escalation path tied to Exchange Hybrid configurations that can impact Exchange Online identity integrity. Remediation/mitigation relies on in...

Microsoft Exchange Server 授权问题漏洞

Microsoft Exchange Server is a set of e-mail service programs from Microsoft. It provides email access, storage, forwarding, voicemail, email filtering and screening, and other features. An authorization issue vulnerability exists in Microsoft Exchange Server, which stems from a mixed deployment...

KLA86361 PE vulnerability in Microsoft Server Software

An elevation of privilege vulnerability was found in Microsoft Server Software. Malicious users can exploit this vulnerability to execute arbitrary code, gain privileges. Original advisories CVE-2025-53786 Related products Microsoft-Exchange-Server CVE list CVE-2025-53786 critical KB list 5050674...

(0Day) Microsoft Exchange PowerShell Exposed Dangerous Method NTLM Relay Vulnerability

This vulnerability allows remote attackers to relay NTLM credentials on affected installations of Microsoft Exchange. Authentication is required to exploit this vulnerability. The specific flaw exists within the PowerShell backend. The issue results from an exposed dangerous method. An attacker c...

Chinese Hacker Xu Zewei Arrested for Ties to Silk Typhoon Group and U.S. Cyber Attacks

A Chinese national has been arrested in Milan, Italy, for his alleged links to a state-sponsored hacking group known as Silk Typhoon and for carrying out cyber attacks against American organizations and government agencies. The 33-year-old, Xu Zewei , has been charged with nine counts of wire fra...

Chinese Hacker Xu Zewei Arrested for Ties to Silk Typhoon Group and U.S. Cyber Attacks

A Chinese national has been arrested in Milan, Italy, for his alleged links to a state-sponsored hacking group known as Silk Typhoon and for carrying out cyber attacks against American organizations and government agencies. The 33-year-old, Xu Zewei , has been charged with nine counts of wire fra...

Exploit for Improper Authentication in Microsoft

Exploit and detect tools for CVE-2020-0688Microsoft Exchange default MachineKeySection deserialize vulnerability build csc ExchangeCmd.cs csc ExchangeDetect.cs usage ExchangeDetect ExchangeCmd sub commands: exec args exec command arch get remote process architecturefor shellcode shellcode run...

NightEagle APT Exploits Microsoft Exchange Flaw to Target China's Military and Tech Sectors

Cybersecurity researchers have shed light on a previously undocumented threat actor called NightEagle aka APT-Q-95 that has been observed targeting Microsoft Exchange servers as a part of a zero-day exploit chain designed to target government, defense, and technology sectors in China. According t...

Microsoft Exchange Admin Center Detected

This is an informational plugin to inform the user that the scanner has detected a publicly accessible Microsoft Exchange Admin Center instance on the target application. No source data...

Hackers Target Over 70 Microsoft Exchange Servers to Steal Credentials via Keyloggers

Unidentified threat actors have been observed targeting publicly exposed Microsoft Exchange servers to inject malicious code into the login pages that harvest their credentials. Positive Technologies, in a new analysis published last week, said it identified two different kinds of keylogger code...

CVE-2020-0688

A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka 'Microsoft Exchange Memory Corruption Vulnerability'...

CVE-2020-0903

A cross-site-scripting XSS vulnerability exists when Microsoft Exchange Server does not properly sanitize a specially crafted web request to an affected Exchange server, aka 'Microsoft Exchange Server Spoofing Vulnerability'...