Quick answers
- Is CVE-2026-73003 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-73003 being exploited in the wild.
- How severe is CVE-2026-73003?
- High severity, with a CVSS score of 7, published 8 September 2026.
- Which products and versions are affected?
- Microsoft Windows Modern Device Management.
- Is there a fix for CVE-2026-73003?
- 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-2026-73003 attacked?
- It is attacked with local access, in an operating system.
- Am I affected by CVE-2026-73003?
- 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 use-after-free vulnerability exists in Windows Modern Device Management (MDM) that can be exploited by an authorized local attacker to escalate privileges. The vulnerability likely results from improper memory management in the MDM service, where memory is freed prematurely but later accessed by the application. An attacker with local access to the system can exploit this flaw to elevate privileges from a standard user account to administrator level. Patches have been made available by Microsoft to address this issue.
Affected products
- Microsoft Windows Modern Device Management
Timeline
- 2026-09-08: disclosed