CVE-2026-56181

HIGH

KISA

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

StatusAwaiting Analysis

설명

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

Score Summary

CVSS Score: 8.3
Version: 3.1
VPI: 83
Why this VPI (explainable, experimental)
VPI breakdown
Impact 83.00
Exploitation signal(No additional exploitation signal) ×1.00
VPI 83.00
VPI formula vpi-v1
EPSS: 0.2%
(상위 15.3%)
Attack Vector: Adjacent Network
High Complexity
No Privileges
No User Interaction
Scope Changed
High Confidentiality Impact
High Integrity Impact
High Availability Impact

Details

Listed in KISA bulletin

This CVE is referenced in a KISA security bulletin (Korean only).

Vulnerability Lifecycle

CWE Weakness Classification

References (1)

KISA Listed

07/14/2026

Impact	83.00
Exploitation signal(No additional exploitation signal)	×1.00
VPI	83.00