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CVE-2026-58628

Windows Wireless Network Manager Elevation of Privilege Vulnerability

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

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Windows 10 1809 Windows 10 21h2 Windows 10 21h2 and 13 more
CVE-2026-58633

Desktop Window Manager Elevation of Privilege Vulnerability

Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Windows 11 26h1 Windows 11 26h1
CVE-2026-58634

Desktop Window Manager Elevation of Privilege Vulnerability

Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Windows 11 26h1 Windows 11 26h1
CVE-2026-56181

Windows Network Address Translation (NAT) Spoofing Vulnerability

Origin validation error in Windows Network Address Translation (NAT) 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
Windows 11 24h2 Windows 11 24h2 Windows 11 25h2 and 5 more
CVE-2022-30190

Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability

A remote code execution vulnerability exists when MSDT is called using the URL protocol from a calling application such as Word. An attacker who successfully exploits this vulnerability can run arbitrary code with the privileges of the calling application. The attacker can then install programs, view, change, or delete data, or create new accounts in the context allowed by the user’s rights. Please see the MSRC Blog Entry for important information about steps you can take to protect your system from this vulnerability.

CVSS 3.1 · 7.8 High EPSS 98.5% KEV · Listed
Vendors
Microsoft
Products
Windows 10 1507 Windows 10 1607 Windows 10 1809 and 20 more
CVE-2021-43890

Windows AppX Installer Spoofing Vulnerability

We have investigated reports of a spoofing vulnerability in AppX installer that affects Microsoft Windows. Microsoft is aware of attacks that attempt to exploit this vulnerability by using specially crafted packages that include the malware family known as Emotet/Trickbot/Bazaloader. An attacker could craft a malicious attachment to be used in phishing campaigns. The attacker would then have to convince the user to open the specially crafted attachment. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. Please see the Security Updates table for the link to the updated app. Alternatively you can download and install the Installer using the links provided in the FAQ section. Please see the Mitigations and Workaround sections for important information about steps you can take to protect your system from this vulnerability. December 27 2023 Update: In recent months, Microsoft Threat Intelligence has seen an increase in activity from threat actors leveraging social engineering and phishing techniques to target Windows OS users and utilizing the ms-appinstaller URI scheme. To address this increase in activity, we have updated the App Installer to disable the ms-appinstaller protocol by default and recommend other potential mitigations.

CVSS 3.1 · 7.1 High EPSS 11.3% KEV · Listed
Vendors
Microsoft
Products
App Installer Windows 10 1507 Windows 10 1709 and 9 more
CVE-2026-50525

.NET Denial of Service Vulnerability

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

CVSS 3.1 · 7.5 High EPSS 1.2% KEV · Not listed
Vendors
Apple Linux Microsoft and 1 more
Products
Macos Linux Kernel .net and 18 more
CVE-2026-50527

.NET Framework Denial of Service Vulnerability

Stack-based buffer overflow in .NET Framework allows an unauthorized attacker to deny service over a network.

CVSS 3.1 · 7.5 High EPSS 1.2% KEV · Not listed
Vendors
Apple Linux Microsoft and 1 more
Products
Macos Linux Kernel .net and 18 more
CVE-2026-50648

.NET Framework Denial of Service Vulnerability

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

CVSS 3.1 · 7.5 High EPSS 1.2% KEV · Not listed
Vendors
Apple Linux Microsoft and 1 more
Products
Macos Linux Kernel .net and 18 more
CVE-2026-58529

Windows Active Directory Federation Services (ADFS) Information Disclosure Vulnerability

Out-of-bounds read in Active Directory Federation Services (AD FS) allows an authorized attacker to disclose information over a network.

CVSS 3.1 · 7.1 High EPSS 1.0% KEV · Not listed
Vendors
Microsoft
Products
Windows 11 26h1 Windows 11 26h1
CVE-2026-50659

.NET Spoofing Vulnerability

Improper encoding or escaping of output in .NET allows an authorized attacker to perform spoofing over a network.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Apple Linux Microsoft and 1 more
Products
Macos Linux Kernel .net and 19 more
CVE-2026-20938

Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability

Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave 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 3 more