CVE-2026-61936
Windows Defender Firewall Service Security Feature Bypass Vulnerability
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
Missing authorization in Windows Defender Firewall Service allows an authorized attacker to bypass a security feature locally.
| Vendor | microsoft |
| Product | windows 10 version 1809 |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Aug 11, 2026 |
| Last Updated | Aug 11, 2026 |
Stay Ahead of the Next One
Get instant alerts for microsoft windows 10 version 1809
Be the first to know when new medium vulnerabilities affecting microsoft windows 10 version 1809 are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / Windows 10 Version 1809
10.0.17763.0 < 10.0.17763.9115
Microsoft / Windows 10 Version 21H2
10.0.19044.0 < 10.0.19044.7663
Microsoft / Windows 10 Version 22H2
10.0.19045.0 < 10.0.19045.7663
Microsoft / Windows 11 version 23H2
10.0.22631.0 < 10.0.22631.7517
Microsoft / Windows 11 Version 23H2
10.0.22631.0 < 10.0.22631.7517
Microsoft / Windows 11 Version 24H2
10.0.26100.0 < 10.0.26100.9168
Microsoft / Windows 11 Version 25H2
10.0.26200.0 < 10.0.26200.9168
Microsoft / Windows 11 version 26H1
10.0.28000.0 < 10.0.28000.2704
Microsoft / Windows Server 2019
10.0.17763.0 < 10.0.17763.9115
Microsoft / Windows Server 2019 (Server Core installation)
10.0.17763.0 < 10.0.17763.9115
Microsoft / Windows Server 2022
10.0.20348.0 < 10.0.20348.5499
Microsoft / Windows Server 2025
10.0.26100.0 < 10.0.26100.33296
Microsoft / Windows Server 2025 (Server Core installation)
10.0.26100.0 < 10.0.26100.33296