Quick answers
- Is CVE-2026-108396 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-108396 being exploited in the wild.
- How severe is CVE-2026-108396?
- High severity, with a CVSS score of 7, published 13 October 2026.
- Which products and versions are affected?
- Microsoft Windows Modern Device Management.
- Is there a fix for CVE-2026-108396?
- 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-2026-108396 attacked?
- It is attacked with local access, in an operating system.
- Am I affected by CVE-2026-108396?
- Check whether you run Microsoft Windows Modern Device Management. 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
A time-of-check time-of-use (TOCTOU) race condition exists in Windows MDM that allows an authorized local attacker to escalate privileges. The vulnerability requires existing authentication on the system and occurs when an attacker exploits a window between a security check and the corresponding action. Exploitation could lead to system-level access.
Affected products
- Microsoft Windows Modern Device Management
Timeline
- 2026-10-13: disclosed