github.comConfirmation
https://github.com/fleetdm/fleet/security/advisories/GHSA-wg7j-pcc3-h4rh CVE-2026-34391
MEDIUM
Fleet Vulnerable to Windows MDM cross-device command disclosure
Record summary
CVE-2026-34391 has a selected CVSS score of 6.6 (medium).
Description
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.
Description source: CVE List
Exploitation context
CISA SSVC decision
ExploitationNone
AutomatableNo
Technical impactPartial
CISA Coordinator · SSVC 2.0.3 · Evaluated Mar 27, 2026 · Source: CVE List
Affected products and versions
1| Product | Source | Version range | Status |
|---|---|---|---|
| CVE List | < 4.81.1 | affected |