CVE-2026-41089

Windows Netlogon Remote Code Execution Vulnerability

Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network.

Affected

Microsoft · Windows Server 2012 · Windows Server 2012 (Server Core installation) · Windows Server 2012 R2 · Windows Server 2012 R2 (Server Core installation) · Windows Server 2016 · Windows Server 2016 (Server Core installation)

CVSS v3.1 MICROSOFT

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.97% chance of exploitation in the next 30 days, 61st percentile

Published

2026-05-12

Updated

2026-08-10

Proof-of-concept exploits (6)

• 0xABCD01/CVE-2026-41089233★ · 2026-06-02
• hnytgl/CVE-2026-4108914★ · 2026-09-26
• 0xBlackash/CVE-2026-4108911★ · 2026-06-05
• jelasin/CVE-2026-410890★ · 2026-06-01
• HydraSoft/CVE-2026-41089-Netlogon-RCE34★ · 2026-08-24
• 1posix/CVE-2026-41089-POC0★ · 2026-09-26

Security advisories

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41089

References

• CVE Record
• NVD entry

Related

• CVE-2026-48866
• CVE-2017-11317
• CVE-2017-11357
• CVE-2019-18935
• CVE-2026-34197
• CVE-2026-42588