CVE-2026-34391
March 27, 2026
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 Packages
github.com/fleetdm/fleet (GO):
Affected version(s) >=v0.0.0-20160728223426-91e78d276f8e <v4.81.1Fix Suggestion:
Update to version v4.81.1github.com/fleetdm/fleet (GO):
Affected version(s) >=v0.0.0-20160728223426-91e78d276f8e <v4.81.1Fix Suggestion:
Update to version v4.81.1github.com/fleetdm/fleet (GO):
Affected version(s) >=v0.0.0-20160728223426-91e78d276f8e <v4.81.1Fix Suggestion:
Update to version v4.81.1Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
UNREPORTED
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Exposure of Data Element to Wrong Session
EPSS
Base Score:
0.02
