# CVE-2026-34391

## Summary

- **CVE ID:** CVE-2026-34391
- **Severity:** MEDIUM
- **CVSS Score:** 6.6 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U)
- **CWE:** CWE-488
- **Published:** Mar 27, 2026
- **Last Modified:** Mar 27, 2026

## 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.

## Affected Products

- fleetdm — fleet (< 4.81.1)

## References

- [CNA](https://github.com/fleetdm/fleet/security/advisories/GHSA-wg7j-pcc3-h4rh)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.16%
- **EPSS Percentile:** 5.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-12._