The audit logon feature in Remote Desktop Protocol (RDP) in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 does not properly log unauthorized login attempts supplying valid credentials, which makes it easier for remote attackers to bypass intended access restrictions via a series of attempts, aka "Remote Desktop Protocol (RDP) Failure to Audit Vulnerability."

A DCOM object in Helppane.exe in Microsoft Windows 7 SP1; Windows Server 2008 R2; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows local users to gain privileges via a crafted application, aka "Windows HelpPane Elevation of Privilege Vulnerability."

Microsoft .NET Framework 4.5 does not properly create policy requirements for custom Windows Communication Foundation (WCF) endpoint authentication in certain situations involving passwords over HTTPS, which allows remote attackers to bypass authentication by sending queries to an endpoint, aka "Authentication Bypass Vulnerability."

A Security Feature Bypass vulnerability exists in ASP.NET when the number of incorrect login attempts is not validated, aka "ASP.NET Security Feature Bypass Vulnerability." This affects ASP.NET, ASP.NET Core 1.1, ASP.NET Core 1.0, ASP.NET Core 2.0, ASP.NET MVC 5.2.

Bot Framework SDK Information Disclosure Vulnerability

Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows an attacker to bypass Extended Protection for Authentication when Kerberos fails to prevent tampering with the SNAME field during ticket exchange, aka "Kerberos SNAME Security Feature Bypass Vulnerability" or Orpheus' Lyre.

IBM Cognos Controller 10.4.0, 10.4.1, and 10.4.2 could allow a remote attacker to bypass security restrictions, caused by improper validation of authentication cookies. IBM X-Force ID: 190847.

IBM Spectrum Protect Operations Center 8.1.0.000 through 8.1.10.and 7.1.0.000 through 7.1.11 could allow a remote attacker to obtain sensitive information, caused by improper authentication of a websocket endpoint. By using known tools to subscribe to the websocket event stream, an attacker could exploit this vulnerability to obtain sensitive information. IBM X-Force ID: 188993.

vRealize Operations for Horizon Adapter (6.7.x prior to 6.7.1 and 6.6.x prior to 6.6.1) has an improper trust store configuration leading to authentication bypass. An unauthenticated remote attacker who has network access to vRealize Operations, with the Horizon Adapter running, may be able to bypass Adapter authentication.

Azure IPAM (IP Address Management) is a lightweight solution developed on top of the Azure platform designed to help Azure customers manage their IP Address space easily and effectively. By design there is no write access to customers' Azure environments as the Service Principal used is only assigned the Reader role at the root Management Group level. Until recently, the solution lacked the validation of the passed in authentication token which may result in attacker impersonating any privileged user to access data stored within the IPAM instance and subsequently from Azure, causing an elevation of privilege. This vulnerability has been patched in version 3.0.0.

The authentication functionality in EMC RSA Authentication Agent 7.1 and RSA Authentication Client 3.5 on Windows XP and Windows Server 2003, when an unspecified configuration exists, allows remote authenticated users to bypass an intended token-authentication step, and establish a login session to a remote host, by leveraging Windows credentials for that host.

Microsoft Authenticator Elevation of Privilege Vulnerability

Improper authentication in Windows NTLM allows an authorized attacker to elevate privileges over a network.

Windows Kerberos Security Feature Bypass Vulnerability

Microsoft Exchange Server Elevation of Privilege Vulnerability

Adobe FrameMaker Publishing Server versions 2022.1 and earlier are affected by an Improper Authentication vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass authentication mechanisms and gain unauthorized access. Exploitation of this issue does not require user interaction.

[Spoofable identity claims] Authentication Bypass by Assumed-Immutable Data in Azure DevOps allows an unauthorized attacker to elevate privileges over a network.

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.

Improper authentication in Azure Stack allows an unauthorized attacker to disclose information over a network.

Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

The Credential Security Support Provider protocol (CredSSP) in Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1 and RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and 1709 Windows Server 2016 and Windows Server, version 1709 allows a remote code execution vulnerability due to how CredSSP validates request during the authentication process, aka "CredSSP Remote Code Execution Vulnerability".

BigTree 4.2.23 on Windows, when Advanced or Simple Rewrite routing is enabled, allows remote attackers to bypass authentication via a ..\ substring, as demonstrated by a launch.php?bigtree_htaccess_url=admin/images/..\ URI.

Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

SMU versions prior to 14.8.7825.01 are susceptible to unintended information disclosure, through URL manipulation. Authenticated users in a Storage administrative role are able to access HNAS configuration backup and diagnostic data, that would normally be barred to that specific administrative role.

Adobe FrameMaker Publishing Server versions 2022 and earlier are affected by an Improper Authentication vulnerability that could result in a Security feature bypass. An unauthenticated attacker can abuse this vulnerability to access the API and leak default admin's password. Exploitation of this issue does not require user interaction.

Sensitive information disclosure and manipulation due to improper authentication. The following products are affected: Acronis Cyber Protect 15 (Linux, macOS, Windows) before build 35979.

Denial of service due to unauthenticated API endpoint. The following products are affected: Acronis Agent (Windows, macOS, Linux) before build 30161.

Sensitive information disclosure due to improper token expiration validation. The following products are affected: Acronis Agent (Windows) before build 32047.

The OneClickSigninBubbleView::WindowClosing function in browser/ui/views/sync/one_click_signin_bubble_view.cc in Google Chrome before 32.0.1700.76 on Windows and before 32.0.1700.77 on Mac OS X and Linux allows attackers to trigger a sync with an arbitrary Google account by leveraging improper handling of the closing of an untrusted signin confirm dialog.

Adobe ColdFusion 9.0, 9.0.1, and 9.0.2, when a password is not configured, allows remote attackers to bypass authentication and possibly execute arbitrary code via unspecified vectors, as exploited in the wild in January 2013.

The Microsoft Azure Active Directory Passport (aka Passport-Azure-AD) library 1.x before 1.4.6 and 2.x before 2.0.1 for Node.js does not recognize the validateIssuer setting, which allows remote attackers to bypass authentication via a crafted token.

Microsoft Office SharePoint Server 2007 Gold and SP1 and Microsoft Search Server 2008 do not properly perform authentication and authorization for administrative functions, which allows remote attackers to cause a denial of service (server load), obtain sensitive information, and "create scripts that would run in the context of the site" via requests to administrative URIs, aka "Access Control Vulnerability."

Windows Power Management Service Information Disclosure Vulnerability

Microsoft Windows 2000 Gold through SP4, XP Gold through SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008 allows remote SMB servers to execute arbitrary code on a client machine by replaying the NTLM credentials of a client user, as demonstrated by backrush, aka "SMB Credential Reflection Vulnerability." NOTE: some reliable sources report that this vulnerability exists because of an insufficient fix for CVE-2000-0834.

Microsoft Host Integration Server (HIS) 2000, 2004, and 2006 does not limit RPC access to administrative functions, which allows remote attackers to bypass authentication and execute arbitrary programs via a crafted SNA RPC message using opcode 1 or 6 to call the CreateProcess function, aka "HIS Command Execution Vulnerability."

Windows DPAPI (Data Protection Application Programming Interface) Spoofing Vulnerability

The tabbed browsing feature in Apple Safari 3 before Beta Update 3.0.4 on Windows, and Mac OS X 10.4 through 10.4.10, allows remote attackers to spoof HTTP authentication for other sites and possibly conduct phishing attacks by causing an authentication sheet to be displayed for a tab that is not active, which makes it appear as if it is associated with the active tab.

A vulnerability in Trend Micro Apex One and Trend Micro Apex One as a Service could allow an attacker to bypass the product's login authentication by falsifying request parameters on affected installations.

Use of Default Password vulnerability in ABB RCCMD on Windows, Linux, MacOS allows Try Common or Default Usernames and Passwords.This issue affects RCCMD: before 4.40 230207.

IBM Security Verify Governance, Identity Manager 10.0.1 software component could allow an authenticated user to modify or cancel any other user's access request using man-in-the-middle techniques. IBM X-Force ID: 231096.  

Improper authentication in Microsoft Defender for Identity allows an unauthorized attacker to perform spoofing over an adjacent network.

Sensitive information disclosure due to improper authentication. The following products are affected: Acronis Cyber Protect 15 (Windows, Linux) before build 29486, Acronis Cyber Backup 12.5 (Windows, Linux) before build 16545.

Windows Remote Desktop Configuration Service Tampering Vulnerability

Remote code execution vulnerability due to insufficient user privilege verification in reverseWall-MDS. Remote attackers can exploit the vulnerability such as stealing account, through remote code execution.

IBM Spectrum Protect Client 8.1.7.0 through 8.1.9.1 (Linux and Windows), 8.1.9.0 trough 8.1.9.1 (AIX) and IBM Spectrum Protect for Space Management 8.1.7.0 through 8.1.9.1 (Linux), 8.1.9.0 through 8.1.9.1 (AIX) web user interfaces could allow an attacker to bypass authentication due to improper session validation which can result in access to unauthorized resources. IBM X-Force ID: 182019.

Session fixation vulnerability in IBM InfoSphere Master Data Management - Collaborative Edition 10.x before 10.1 IF5 and 11.0 before IF1 and InfoSphere Master Data Management Server for Product Information Management 9.x before 9.1 IF11 allows remote authenticated users to hijack web sessions via unspecified vectors.