Dashboard / CVE-2026-56181

CVE-2026-56181

HIGH
MEDIUM Priority: 0.02 BB Relevance: 52/100
Published: 2026-07-14 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Adjacent No Auth No Interaction Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Adjacent
AC: High
PR: None
UI: None
S: Changed
C: High
I: High
A: High

Description

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

Weakness Classification (1)

Affected Software (5)

VendorProductVersion
Microsoft Windows 11 Version 24H2 10.0.26100.0 < 10.0.26100.8875
microsoft windows_11_24h2 < 10.0.26100.8875
microsoft windows_11_25h2 < 10.0.26200.8875
microsoft windows_11_26h1 < 10.0.28000.2525
microsoft windows_server_2025 < 10.0.26100.33158

References & Advisories (1)

Bug Bounty Relevance

52 / 100
✓ No authentication
✓ No user interaction

CVSS Score

8.3 / 10.0 v3.1
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

EPSS — Exploitation Probability

0.28%
Raw Score 0.002760
Percentile 20.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00276
2026-10-28
0.00276

Intelligence Sources

mitre ref →

External Links