CVE-2026-56181 Windows Network Address Translation (NAT) Spoofing Vulnerability

Tillverkarens beskrivning (engelska)

Origin validation error in Windows Network Address Translation (NAT) allows an unauthorized attacker to perform spoofing over an adjacent network.

Referensdata

Tillverkare

Microsoft

Berörda produkter

• Windows 11 Version 24H2
• Windows 11 Version 25H2
• Windows 11 version 26H1
• Windows Server 2025
• Windows Server 2025 (Server Core installation)

CVSS 3.1

8.3 (HIGH)

Vektor

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

Typ av svaghet

CWE-346: Origin Validation Error

Publicerad

14 juli 2026

Officiella källor

• CVE.org
• NVD
• Tillverkarens advisory

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