CVE-2026-56181
Windows Network Address Translation (NAT) Spoofing Vulnerability
Description
Origin validation error in Windows Network Address Translation (NAT) allows an unauthorized attacker to perform spoofing over an adjacent network.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:AAttack VectorAdjacent
AC:HAttack ComplexityHigh
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:CScopeChanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
and 7 more affected products View all →
Exploitability
Official Patch Available
References
News mentions
5- ⚡ Weekly Recap: AI Goes Rogue, Metabase 0-Day, MCP Supply-Chain Attacks, and Router Backdoorsen·The Hacker News· Exploited Mythos 5 UNC6671
- New NatJack Attacks Hijack TCP Sessions and Spoof DNS by Manipulating NAT Tablesen·The Hacker News· Research Windows NAT network-edge
- Black Hat USA 2026 – Summary of Vendor Announcements (Part 4)en-us·SecurityWeek·
- Microsoft Patch Tuesday July 2026 - The AI Acopolypse is Hereen·SANS Internet Storm Center· Exploited Windows privilege-escalation
- Microsoft July 2026 Patch Tuesday fixes massive 570 flaws, 3 zero-daysen-us·BleepingComputer· Exploited .NET zero-day
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