CVE-2026-83670

Function Discovery Service (fdwsd.dll) Information Disclosure Vulnerability

Out-of-bounds read in Function Discovery Service (fdwsd.dll) allows an unauthorized attacker to disclose information over a network.

CVSS 3.1 · 7.5 High EPSS 1.1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more

CVE-2026-83674

Active Directory Federation Services (AD FS) Spoofing Vulnerability

Weak authentication in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows Server 2016 and 6 more

CVE-2026-83688

Remote Desktop Client Remote Code Execution Vulnerability

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

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more

CVE-2026-83693

Windows Error Reporting Remote Code Execution Vulnerability

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

CVSS 3.1 · 9.8 Critical EPSS 1.1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more

CVE-2026-83694

Windows Volume Manager Extension Driver Elevation of Privilege Vulnerability

Out-of-bounds read in Windows Volume Manager Extension Driver allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more

CVE-2026-83760

Microsoft Bluetooth Driver Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Bluetooth Driver allows an authorized attacker to disclose information locally.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 20 more

CVE-2026-83738

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more

CVE-2026-83725

Microsoft Windows Search Component Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Windows Search Component allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more

CVE-2026-83737

Windows NTFS Information Disclosure Vulnerability

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

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more

CVE-2026-83513

Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability

Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more

CVE-2026-83514

Windows Partition Management Driver Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Partition Management Driver allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more

CVE-2026-83517

Microsoft Windows Media Foundation Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 9.8 Critical EPSS 1.1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more

CVE-2026-83519

Windows Error Reporting Remote Code Execution Vulnerability

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

CVSS 3.1 · 9.8 Critical EPSS 1.1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more

CVE-2026-83571

Windows Audio Service Information Disclosure Vulnerability

Null pointer dereference in Windows Audio Service allows an authorized attacker to disclose information locally.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more

CVE-2026-83578

Microsoft PowerShell Remote Code Execution Vulnerability

Integer underflow (wrap or wraparound) in Windows PowerShell allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 9.8 Critical EPSS 1.1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more

CVE-2026-83580

Windows Client-Side Caching (CSC) Service Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Client-Side Caching (CSC) Service allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more

CVE-2026-83583

Windows Geotag Broker Elevation of Privilege Vulnerability

Improper access control in Windows Geotag Broker allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 20 more

CVE-2026-83587

Windows Core Messaging Elevation of Privilege Vulnerability

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

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 20 more

CVE-2026-83641

Windows Media Elevation of Privilege Vulnerability

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

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more

CVE-2026-83683

Windows Encrypting File System (EFS) Information Disclosure Vulnerability

Absolute path traversal in Windows Encrypting File System (EFS) allows an authorized attacker to disclose information over a network.

CVSS 3.1 · 6.5 Medium EPSS 1.3% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more