CVE-2026-85323: Microsoft Network Device Enrollment Service weak authentication spoofing

CVE-2026-85323 · Severity: medium · CVSS 6.8 · Published 2026-10-13

Network Device Enrollment Service (NDES) is a Microsoft service that manages certificate enrollment for network devices. Weak authentication in NDES allows an authorized attacker to spoof device identities over the network, potentially enabling unauthorized access to network resources or device impersonation attacks.

Technologies: Microsoft Network Device Enrollment Service, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows Server 2025. Vendors: Microsoft.

Quick answers

Is CVE-2026-85323 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-85323 being exploited in the wild.
How severe is CVE-2026-85323?
Medium severity, with a CVSS score of 6.8, published 13 October 2026.
Which products and versions are affected?
Microsoft Network Device Enrollment Service.
Is there a fix for CVE-2026-85323?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-85323 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-85323?
Check whether you run Microsoft Network Device Enrollment Service, Microsoft Windows 10 1607, Microsoft Windows 10 1809 or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability stems from weak authentication mechanisms in NDES that fail to properly validate device identity during enrollment operations. An attacker with valid network access and authorization to interact with the NDES service could craft malicious enrollment requests to spoof legitimate devices. Exploitation requires network access and prior authorization to the NDES interface.

Affected products

  • Microsoft Network Device Enrollment Service

Timeline

  • 2026-10-13: disclosed

References

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