CVE-2026-34391 describes a high-severity vulnerability in Fleet device management software, affecting versions prior to 4.81.1. This flaw allows a malicious enrolled device to intercept and access Windows MDM commands intended for other devices, potentially exposing sensitive configuration data. Rated 7.5 High (CVSS:3.1/AV:N/AC:L/PR:N), the vulnerability is network-exploitable with low complexity and no additional privileges required, posing a high risk of confidentiality impact. Potential impact includes the exposure of WiFi credentials, VPN secrets, and certificate payloads across the entire Windows fleet. Currently, there is no evidence of active exploitation, public exploit code availability, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.81.1CPE matchmatch criteria | cpe:2.3:a:fleetdm:fleet:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.