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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/fleetdm/fleet/security/advisories/GHSA-wg7j-pcc3-h4rh	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:fleetdm:fleet:*:*:*:*:*:*:*:*

History

02 Apr 2026, 19:42

Type	Values Removed	Values Added
CPE		cpe:2.3:a:fleetdm:fleet::::::::
First Time		Fleetdm fleet Fleetdm
References	~~() https://github.com/fleetdm/fleet/security/advisories/GHSA-wg7j-pcc3-h4rh -~~	() https://github.com/fleetdm/fleet/security/advisories/GHSA-wg7j-pcc3-h4rh - Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5

27 Mar 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-27 20:16

Updated : 2026-04-02 19:42

NVD link : CVE-2026-34391

Mitre link : CVE-2026-34391

CVE.ORG link : CVE-2026-34391

JSON object : View

Products Affected

fleetdm

fleet

CWE

CWE-488

Exposure of Data Element to Wrong Session

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