Windows 10 Version 1607 vulnerability

Authentication bypass by spoofing in Windows Netlogon allows an unauthorized attacker to perform spoofing over an adjacent network.

Published 8 Sep 2026Updated 9 Sep 20261 sources
CVSS 7.5

What happened

Authentication bypass by spoofing in Windows Netlogon allows an unauthorized attacker to perform spoofing over an adjacent network.

Affected versions

Windows 10 Version 1607: 10.0.14393.0 through before 10.0.14393.9512 (custom); 10.0.17763.0 through before 10.0.17763.9245 (custom); 10.0.19044.0 through before 10.0.19044.7725 (custom); 10.0.19045.0 through before 10.0.19045.7725 (custom); 10.0.22631.0 through before 10.0.22631.7582 (custom); 10.0.26100.0 through before 10.0.26100.9445 (custom); 10.0.26200.0 through before 10.0.26200.9445 (custom); 10.0.28000.0 through before 10.0.28000.2954 (custom); 6.2.9200.0 through before 6.2.9200.26349 (custom); 6.3.9600.0 through before 6.3.9600.23397 (custom); 10.0.20348.0 through before 10.0.20348.5622 (custom); 10.0.26100.0 through before 10.0.26100.33438 (custom) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.