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CVE-2026-25667

Denial of Service via crafted QUIC packet in ASP.NET Core Kestrel

ASP.NET Core Kestrel in Microsoft .NET 8.0 before 8.0.22 and .NET 9.0 before 9.0.11 allows a remote attacker to cause excessive CPU consumption by sending a crafted QUIC packet, because of an incorrect exit condition for HTTP/3 Encoder/Decoder stream processing.

CVSS 3.1 · 7.5 High EPSS 3.4% KEV · Not listed
Vendors
Microsoft
Products
.net Aspnetcore
CVE-2026-57211

RabbitMQ: UNC SSRF affecting the management UI on Windows

RabbitMQ is a messaging and streaming broker. Prior to 4.1.11 and 4.2.6 on Windows, the RabbitMQ management plugin static file handler rabbit_mgmt_wm_static can pass URL-encoded backslashes to erl_prim_loader:read_file_info before path validation when multiple management extension plugins are enabled, causing outbound DNS and SMB requests to attacker-controlled UNC paths. This issue is fixed in versions 4.1.11 and 4.2.6.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Broadcom Microsoft Rabbitmq
Products
Rabbitmq Server Windows Rabbitmq-server
CVE-2026-85926

Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability

Use after free in Windows Secure Socket Tunneling Protocol (SSTP) 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 1607 Windows 10 1809 Windows 10 21h2 and 25 more
CVE-2026-96222

Active Directory Federation Services (AD FS) Spoofing Vulnerability

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

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Vendors
Apple Linux Microsoft
Products
Macos Linux Kernel .net and 26 more
CVE-2026-85808

Windows Routing and Remote Access Service (RRAS) Denial of Service Vulnerability

Out-of-bounds read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to deny service 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-2026-70015

Windows Local Security Authority Subsystem Service (LSASS) Elevation of Privilege Vulnerability

Use after free in Windows Local Security Authority Subsystem Service (LSASS) 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-2026-83885

Windows Virtualization-Based Security (VBS) Enclave Spoofing Vulnerability

Inadequate encryption strength in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to perform spoofing locally.

CVSS 3.1 · 5.6 Medium EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Windows 11 24h2 Windows 11 24h2 Windows 11 25h2 and 8 more
CVE-2026-84020

Windows Routing and Remote Access Service (RRAS) Elevation of Privilege Vulnerability

Use after free in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Windows 10 21h2 Windows 10 21h2 Windows 10 22h2 and 14 more