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Microsoft security briefs

268 published alerts for Microsoft products and services.

Microsoft MSRC

CVE-2026-34328

Windows Audio Service Information Disclosure vulnerability

Windows Audio Service Information Disclosure vulnerability (CVE-2026-34328) was added to Microsoft’s security update guidance. Exposure of sensitive information to an unauthorized actor in Windows Audio Service allows an authorized attacker to disclose information locally. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

MediumMicrosoft MSRC

CVE-2026-34346

Windows Ancillary Function Driver for WinSock Information Disclosure vulnerability

Windows Ancillary Function Driver for WinSock Information Disclosure vulnerability (CVE-2026-34346) was added to Microsoft’s security update guidance. Cleartext transmission of sensitive information in Windows Ancillary Function Driver for WinSock allows an authorized attacker to disclose information locally. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

MediumMicrosoft MSRC

CVE-2026-34348

Windows Event Logging Service Information Disclosure vulnerability

Windows Event Logging Service Information Disclosure vulnerability (CVE-2026-34348) was added to Microsoft’s security update guidance. Protection mechanism failure in Windows Event Logging Service allows an authorized attacker to disclose information over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

MediumMicrosoft MSRC

CVE-2026-34349

Windows Media Information Disclosure vulnerability

Windows Media Information Disclosure vulnerability (CVE-2026-34349) was added to Microsoft’s security update guidance. Exposure of sensitive information to an unauthorized actor in Windows Media allows an authorized attacker to disclose information locally. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-40378

Windows Local Security Authority Subsystem Service (LSASS) Denial of Service vulnerability

Windows Local Security Authority Subsystem Service (LSASS) Denial of Service vulnerability (CVE-2026-40378) was added to Microsoft’s security update guidance. Memory allocation with excessive size value in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-40400

Windows PowerShell Remote Code Execution vulnerability

Windows PowerShell Remote Code Execution vulnerability (CVE-2026-40400) was added to Microsoft’s security update guidance. Relative path traversal in Windows PowerShell allows an authorized attacker to execute code over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-40422

Windows File Explorer Information Disclosure vulnerability

Windows File Explorer Information Disclosure vulnerability (CVE-2026-40422) was added to Microsoft’s security update guidance. Use of uninitialized resource in Windows File Explorer allows an authorized attacker to disclose information locally. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-41087

Windows File Explorer Information Disclosure vulnerability

Windows File Explorer Information Disclosure vulnerability (CVE-2026-41087) was added to Microsoft’s security update guidance. Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-42897

Microsoft Exchange Server Spoofing vulnerability

Microsoft Exchange Server Spoofing vulnerability (CVE-2026-42897) was added to Microsoft’s security update guidance. Updated FAQ information. This is an informational change only. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-42900

Microsoft Windows App Store Elevation of Privilege vulnerability

Microsoft Windows App Store Elevation of Privilege vulnerability (CVE-2026-42900) was added to Microsoft’s security update guidance. Concurrent execution using shared resource with improper synchronization ('race condition') in Windows App Store allows an unauthorized attacker to elevate privileges over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-42975

Windows Bluetooth Port Driver Remote Code Execution vulnerability

Windows Bluetooth Port Driver Remote Code Execution vulnerability (CVE-2026-42975) was added to Microsoft’s security update guidance. Heap-based buffer overflow in Windows Bluetooth Port Driver allows an unauthorized attacker to execute code over an adjacent network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-42982

Windows Secure Kernel Mode Elevation of Privilege vulnerability

Windows Secure Kernel Mode Elevation of Privilege vulnerability (CVE-2026-42982) was added to Microsoft’s security update guidance. Improper validation of consistency within input in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-42990

SQL Server ODBC driver Elevation of Privilege vulnerability

SQL Server ODBC driver Elevation of Privilege vulnerability (CVE-2026-42990) was added to Microsoft’s security update guidance. Heap-based buffer overflow in SQL Server ODBC driver allows an unauthorized attacker to execute code over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-44800

Windows Push Notifications Elevation of Privilege vulnerability

Windows Push Notifications Elevation of Privilege vulnerability (CVE-2026-44800) was added to Microsoft’s security update guidance. Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-44806

Windows Secure Channel Denial of Service vulnerability

Windows Secure Channel Denial of Service vulnerability (CVE-2026-44806) was added to Microsoft’s security update guidance. Missing release of memory after effective lifetime in Windows Cryptographic Services allows an unauthorized attacker to deny service over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-45496

Visual Studio Code Security Feature Bypass vulnerability

Visual Studio Code Security Feature Bypass vulnerability (CVE-2026-45496) was added to Microsoft’s security update guidance. Improper limitation of a pathname to a restricted directory ('path traversal') in Visual Studio Code allows an unauthorized attacker to bypass a security feature locally. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-47290

Microsoft Office Remote Code Execution vulnerability

Microsoft Office Remote Code Execution vulnerability (CVE-2026-47290) was added to Microsoft’s security update guidance. Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-47295

Microsoft SQL Server Elevation of Privilege vulnerability

Microsoft SQL Server Elevation of Privilege vulnerability (CVE-2026-47295) was added to Microsoft’s security update guidance. Improper neutralization of special elements used in an sql command ('sql injection') in SQL Server allows an authorized attacker to elevate privileges over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-47296

Microsoft SQL Server Elevation of Privilege vulnerability

Microsoft SQL Server Elevation of Privilege vulnerability (CVE-2026-47296) was added to Microsoft’s security update guidance. Improper neutralization of special elements used in an sql command ('sql injection') in SQL Server allows an authorized attacker to elevate privileges locally. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-47305

Visual Studio Remote Code Execution vulnerability

Visual Studio Remote Code Execution vulnerability (CVE-2026-47305) was added to Microsoft’s security update guidance. Protection mechanism failure in Visual Studio allows an unauthorized attacker to execute code locally. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-24304

Azure Resource Manager Elevation of Privilege vulnerability

Azure Resource Manager Elevation of Privilege vulnerability (CVE-2026-24304) was added to Microsoft’s security update guidance. Informational Change. CVE ID stays the same. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-66803

Azure Cosmos DB Remote Code Execution vulnerability

Azure Cosmos DB Remote Code Execution vulnerability (CVE-2026-66803) was added to Microsoft’s security update guidance. Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-62835

Azure Portal Information Disclosure vulnerability

Azure Portal Information Disclosure vulnerability (CVE-2026-62835) was added to Microsoft’s security update guidance. Corrected the CVE description and title. This is an informational change only. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-35425

Azure API Management (APIM) Remote Code Execution vulnerability

Azure API Management (APIM) Remote Code Execution vulnerability (CVE-2026-35425) was added to Microsoft’s security update guidance. Improper access control in Azure API Management (APIM) allows an authorized attacker to execute code over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.