Microsoft CVEs and Security Vulnerabilities

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CVE-2026-69841

Windows Encrypting File System (EFS) Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Encrypting File System (EFS) 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 23 more

CVE-2026-69844

Windows Win32k Elevation of Privilege Vulnerability

Out-of-bounds read in Windows Win32K 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 23 more

CVE-2026-69852

Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability

Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machine

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more

CVE-2026-69853

Win32k Information Disclosure Vulnerability

Use of uninitialized resource in Windows Win32K allows an authorized attacker to disclose information locally.

CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more

CVE-2026-70342

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Use after free in Windows Ancillary Function Driver for WinSock allows an unauthorized attacker to elevate privileges over a network.

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

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more

CVE-2026-70562

Windows Audio Service Elevation of Privilege Vulnerability

Double free in Windows Audio 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 23 more

CVE-2026-70563

Windows Shell Spoofing Vulnerability

Improper link resolution before file access ('link following') in Windows Shell 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 10 21h2 and 23 more

CVE-2026-70564

Windows Print Spooler Components Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Print Spooler Components 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 23 more

CVE-2026-70565

Windows AF_UNIX Socket Provider Elevation of Privilege Vulnerability

Use after free in Windows AF_UNIX Socket Provider 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 23 more

CVE-2026-70567

Windows Display Enhancement Service Elevation of Privilege Vulnerability

Double free in Windows Display Enhancement Service allows an authorized attacker to elevate privileges locally.

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

Vendors

Microsoft

Products

Windows 11 24h2 Windows 11 24h2 Windows 11 25h2 and 5 more

CVE-2026-70568

Windows Defender Firewall Service Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Defender Firewall 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 23 more

CVE-2026-70569

Windows Spaceport.sys Elevation of Privilege Vulnerability

Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to elevate privileges locally.

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

Vendors

Microsoft

Products

Windows 11 23h2 Windows 11 23h2 Windows 11 24h2 and 8 more

CVE-2026-57098

Microsoft Remote Desktop App for Windows Information Disclosure Vulnerability

Improper verification of cryptographic signature in Windows RDP Client allows an unauthorized attacker to disclose information over a network.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Remote Desktop Remote Desktop Client

CVE-2026-78450

Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability

Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over a network.

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

Vendors

Microsoft

Products

Windows 10 1809 Windows Server 2019 Windows Server 2019 (server Core Installation) and 3 more

CVE-2026-75624

IBM App Connect Enterprise is vulnerable to privilege escalation and Denial of Service

IBM App Connect Enterprise 13.0.1.0 through 13.0.8.1, and 12.0.1.0 through 12.0.12.27 could allow a remote authenticated attacker to bypass security restrictions due to incorrect authorization.

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

Vendors

Ibm Linux Microsoft

Products

Aix App Connect Enterprise Linux Kernel and 1 more

CVE-2026-69646

Skype for Business Spoofing Vulnerability

Improper verification of cryptographic signature in Skype for Business allows an unauthorized attacker to perform spoofing over an adjacent network.

CVSS 3.1 · 8.3 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Skype For Business Server Skype For Business Server 2015 Skype For Business Server 2019 and 1 more

CVE-2026-69642

Skype for Business Spoofing Vulnerability

Improper neutralization of input during web page generation ('cross-site scripting') in Skype for Business allows an unauthorized attacker to perform spoofing over a network.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Skype For Business Server Skype For Business Server 2015 Skype For Business Server 2019 and 1 more

CVE-2026-66308

Skype for Business and Lync Denial of Service Vulnerability

Out-of-bounds read in Skype for Business allows an authorized attacker to deny service over a network.

CVSS 3.1 · 6.5 Medium EPSS 1.1% KEV · Not listed

Vendors

Microsoft

Products

Skype For Business Server Skype For Business Server 2015 Skype For Business Server 2019 and 1 more

CVE-2026-66307

Skype for Business and Lync Denial of Service Vulnerability

Integer underflow (wrap or wraparound) in Skype for Business allows an unauthorized attacker to deny service over a network.

CVSS 3.1 · 7.5 High EPSS 1.2% KEV · Not listed

Vendors

Microsoft

Products

Skype For Business Server Skype For Business Server 2015 Skype For Business Server 2019 and 1 more

CVE-2026-66306

Skype for Business Information Disclosure Vulnerability

Generation of error message containing sensitive information in Skype for Business allows an unauthorized attacker to disclose information over a network.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Skype For Business Server Skype For Business Server 2015 Skype For Business Server 2019 and 1 more

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