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CVE-2026-56179

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-2026-62799

Windows SMB Client Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows SMB Client 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-2026-62775

Windows Container Isolation FS Filter Driver (unionfs.sys) Information Disclosure Vulnerability

Incorrect authorization in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to disclose information locally.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Windows 11 26h1 Windows 11 26h1
CVE-2026-62772

Windows Container Isolation FS Filter Driver (unionfs.sys) Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unionfs.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 26h1 Windows 11 26h1
CVE-2026-62693

Windows MIDI Service Module Elevation of Privileges Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows MIDI Service Module 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 3 more
CVE-2026-47302

.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 19 more