PT-2026-28631

CVE-2026-34391

Published

2026-03-27

Updated

2026-03-28

Description by

CVSS 3.1

7.5

High

MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Fleet versions prior to 4.81.1

Description Fleet, an open source device management software, contains an issue in its Windows MDM command processing. A malicious enrolled device can access MDM commands intended for other devices. This could expose sensitive configuration data, including WiFi credentials, VPN secrets, and certificate payloads, across the entire Windows fleet.

Recommendations Update to version 4.81.1 or later.

Exploitability

Exploit

Fix

Researchers

Fuzzztf

Vendors

Affected products

Weakness enumeration

CWE-488: Exposure of Data Element to Wrong Session

Related identifiers

CVE-2026-34391