CVE-2026-34391
Fleet is open source device management software. Prior to 4.81.1, a vulnerability in Fleet's Windows MDM command processing allows a malicious enrolled device to access MDM commands intended for other devices, potentially exposing sensitive configuration data such as WiFi credentials, VPN secrets, and certificate payloads across the entire Windows fleet. Version 4.81.1 patches the issue.
- Affected products
- Fleet
- Fleetdm Fleet
- < 4.81.1
- Fix
- Available
- CVSS 4.0
- 8.7 HIGH
- CVSS 3.1
- 7.5 HIGH
- EPSS
- 0.2% (6th percentile)
- Weakness
- CWE-488
- NVD status
- Analyzed
- Published
- 2026-03-27
CVE-2026-34391 at NVD
No indexed exploits for CVE-2026-34391 yet
Our index is partial: it proves presence, never absence
No exploit for CVE-2026-34391 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.