Microsoft Patch Tuesday · April 2025

Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to execute code over a network.

Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to execute code over a network.

Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to execute code over a network.

Improper input validation in Windows Kerberos allows an authorized attacker to elevate privileges over a network.

Out-of-bounds read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.

Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to execute code over a network.

Stack-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to execute code over a network.

Weak authentication in Windows Active Directory Certificate Services allows an authorized attacker to elevate privileges over a network.

Improper input validation in Windows Security Zone Mapping allows an unauthorized attacker to bypass a security feature locally.

Improper access control in Windows Defender Application Control (WDAC) allows an unauthorized attacker to bypass a security feature locally.

Use after free in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to execute code over a network.

Use after free in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to execute code over a network.

Use after free in Windows Remote Desktop Services allows an unauthorized attacker to execute code over a network.

Use after free in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.

Sensitive data storage in improperly locked memory in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.

Heap-based buffer overflow in Remote Desktop Client allows an authorized attacker to execute code over a network.

Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally.

Improper input validation in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

Improper input validation in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

Improper input validation in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

Improper input validation in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

Improper input validation in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

Integer overflow or wraparound in Windows USB Print Driver allows an authorized attacker to elevate privileges locally.

Sensitive data storage in improperly locked memory in Windows Kernel allows an authorized attacker to elevate privileges locally.

Heap-based buffer overflow in Windows Media allows an authorized attacker to execute code locally.

Heap-based buffer overflow in Windows Media allows an authorized attacker to execute code locally.

Out-of-bounds read in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.

Use after free in RPC Endpoint Mapper Service allows an authorized attacker to elevate privileges locally.

Stack-based buffer overflow in Microsoft Virtual Hard Drive allows an authorized attacker to elevate privileges locally.

Use after free in Windows Digital Media allows an authorized attacker to elevate privileges locally.

Out-of-bounds read in Windows NTFS allows an unauthorized attacker to elevate privileges locally.

Heap-based buffer overflow in Windows Bluetooth Service allows an authorized attacker to elevate privileges locally.

Improper link resolution before file access ('link following') in Windows Installer allows an authorized attacker to elevate privileges locally.

Out-of-bounds read in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.

Use after free in Windows Shell allows an unauthorized attacker to execute code locally.

Use after free in Windows Digital Media allows an authorized attacker to elevate privileges locally.

Improper input validation in OpenSSH for Windows allows an authorized attacker to elevate privileges locally.

Out-of-bounds read in Windows NTFS allows an unauthorized attacker to elevate privileges locally.

Untrusted pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges locally.

Out-of-bounds read in Windows NTFS allows an unauthorized attacker to elevate privileges locally.

Untrusted search path in System Center allows an authorized attacker to elevate privileges locally.

Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.

Improper privilege management in Microsoft AutoUpdate (MAU) allows an authorized attacker to elevate privileges locally.

Incorrect default permissions in Microsoft AutoUpdate (MAU) allows an authorized attacker to elevate privileges locally.

Improper input validation in Windows Mobile Broadband allows an authorized attacker to elevate privileges locally.

Untrusted pointer dereference in Windows Kernel Memory allows an authorized attacker to elevate privileges locally.

Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

Incomplete list of disallowed inputs in Microsoft Office OneNote allows an unauthorized attacker to bypass a security feature locally.

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Uncontrolled resource consumption in Windows Standards-Based Storage Management Service allows an unauthorized attacker to deny service over a network.

Uncontrolled resource consumption in Windows Cryptographic Services allows an unauthorized attacker to deny service over a network.

Uncontrolled resource consumption in Windows Standards-Based Storage Management Service allows an unauthorized attacker to deny service over a network.

Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

Uncontrolled resource consumption in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to deny service over a network.

Uncontrolled resource consumption in Windows Standards-Based Storage Management Service allows an unauthorized attacker to deny service over a network.

Sensitive data storage in improperly locked memory in Windows TCP/IP allows an unauthorized attacker to execute code over a network.

Use after free in Windows Win32K - GRFX allows an unauthorized attacker to elevate privileges over a network.

Uncontrolled resource consumption in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to deny service over a network.

Uncontrolled resource consumption in Windows Standards-Based Storage Management Service allows an unauthorized attacker to deny service over a network.

Uncontrolled resource consumption in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.

Insufficient resource pool in Windows Kerberos allows an unauthorized attacker to deny service over a network.

Sensitive data storage in improperly locked memory in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges over a network.

Uncontrolled resource consumption in Windows Standards-Based Storage Management Service allows an unauthorized attacker to deny service over a network.

Uncontrolled resource consumption in Windows Standards-Based Storage Management Service allows an unauthorized attacker to deny service over a network.

Exposure of sensitive information to an unauthorized actor in Outlook for Android allows an unauthorized attacker to disclose information over a network.

Improper access control in Active Directory Domain Services allows an authorized attacker to elevate privileges over a network.

Improper input validation in Microsoft Office Word allows an unauthorized attacker to bypass a security feature over a network.

Improper access control in Visual Studio allows an authorized attacker to elevate privileges locally.

Uncontrolled search path element in Visual Studio Tools for Applications and SQL Server Management Studio allows an authorized attacker to elevate privileges locally.

Improper access control in Visual Studio allows an authorized attacker to elevate privileges locally.

Use after free in Windows Hyper-V allows an authorized attacker to execute code over a network.

Insecure storage of sensitive information in Windows Kerberos allows an authorized attacker to bypass a security feature locally.

Time-of-check time-of-use (toctou) race condition in Windows Local Security Authority (LSA) allows an authorized attacker to elevate privileges locally.

Use after free in Windows Digital Media allows an authorized attacker to elevate privileges locally.

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Secure Channel allows an authorized attacker to elevate privileges locally.

Sensitive data storage in improperly locked memory in Windows upnphost.dll allows an authorized attacker to elevate privileges locally.

Sensitive data storage in improperly locked memory in Windows Update Stack allows an authorized attacker to elevate privileges locally.

Heap-based buffer overflow in Windows Local Security Authority (LSA) allows an authorized attacker to elevate privileges locally.

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Secure Channel allows an authorized attacker to elevate privileges locally.

Sensitive data storage in improperly locked memory in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

Protection mechanism failure in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.

Improper access control in Visual Studio Code allows an authorized attacker to elevate privileges locally.

Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

Improper access control in Windows NTFS allows an authorized attacker to disclose file path information under a folder where the attacker doesn't have permission to list content.

Buffer over-read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.

Weak authentication in Windows Hello allows an authorized attacker to bypass a security feature over a network.

Exposed dangerous method or function in Windows Local Session Manager (LSM) allows an authorized attacker to deny service over a network.

Buffer over-read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.

Exposure of sensitive information to an unauthorized actor in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.

Buffer over-read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.

Buffer over-read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.

Use of uninitialized resource in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.

Improper access control in Windows Resilient File System (ReFS) allows an authorized attacker to disclose information over a network.

Insufficient verification of data authenticity in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.

Sensitive data storage in improperly locked memory in Microsoft Streaming Service allows an unauthorized attacker to deny service over a network.

Exposure of sensitive information to an unauthorized actor in Windows Power Dependency Coordinator allows an authorized attacker to disclose information locally.

Out-of-bounds read in Windows NTFS allows an unauthorized attacker to disclose information locally.

Use of a cryptographic primitive with a risky implementation in Windows Cryptographic Services allows an authorized attacker to disclose information locally.

Protection mechanism failure in Windows Mark of the Web (MOTW) allows an unauthorized attacker to bypass a security feature over a network.

Automated recognition mechanism with inadequate detection or handling of adversarial input perturbations in Windows Hello allows an unauthorized attacker to perform spoofing locally.

Use after free in Site Isolation in Google Chrome prior to 135.0.7049.84 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Inappropriate implementation in Custom Tabs in Google Chrome on Android prior to 135.0.7049.52 allowed a remote attacker who convinced a user to engage in specific UI gestures to perform privilege escalation via a crafted app.

Inappropriate implementation in Intents in Google Chrome on Android prior to 135.0.7049.52 allowed a remote attacker to perform privilege escalation via a crafted HTML page.

Inappropriate implementation in Extensions in Google Chrome prior to 135.0.7049.52 allowed a remote attacker to perform privilege escalation via a crafted HTML page.

Insufficient validation of untrusted input in Extensions in Google Chrome prior to 135.0.7049.52 allowed a remote attacker to perform privilege escalation via a crafted HTML page.

Inappropriate implementation in Navigations in Google Chrome prior to 135.0.7049.52 allowed a remote attacker who convinced a user to engage in specific UI gestures to bypass same origin policy via a crafted HTML page.

Inappropriate implementation in Custom Tabs in Google Chrome prior to 135.0.7049.52 allowed a remote attacker who convinced a user to engage in specific UI gestures to perform UI spoofing via a crafted HTML page.

Inappropriate implementation in Autofill in Google Chrome prior to 135.0.7049.52 allowed a remote attacker who convinced a user to engage in specific UI gestures to perform UI spoofing via a crafted HTML page.

Inappropriate implementation in Downloads in Google Chrome prior to 135.0.7049.52 allowed a remote attacker to perform UI spoofing via a crafted HTML page.

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.

Improper access control in Microsoft Office allows an authorized attacker to elevate privileges locally.

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.

Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.

Out-of-bounds read in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

User interface (ui) misrepresentation of critical information in Microsoft Edge for iOS allows an unauthorized attacker to perform spoofing over a network.

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

Improper input validation in Azure Local allows an authorized attacker to elevate privileges locally.

Insufficiently protected credentials in Azure Local Cluster allows an authorized attacker to disclose information locally.

Insertion of sensitive information into log file in Azure Local Cluster allows an authorized attacker to disclose information over an adjacent network.

External control of file name or path in Azure Portal Windows Admin Center allows an unauthorized attacker to disclose information locally.

Improper authorization in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Improper input validation in Dynamics Business Central allows an authorized attacker to disclose information locally.