cvedb.io
CVE-2026-23998
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-05-14T19:16:30.983 · Last modified 2026-06-17T10:22:27.167

Summary

Fleet is open source device management software. Prior to version 4.81.0, a vulnerability in Fleet’s Windows MDM management endpoint could allow requests to be processed without proper client certificate validation. In certain circumstances, this could allow an attacker to impersonate an enrolled Windows device and retrieve sensitive configuration data. Fleet’s Windows MDM management endpoint relies on mutual TLS (mTLS) client certificates to authenticate enrolled devices. In affected versions, requests that did not present a client certificate could be incorrectly treated as trusted. As a result, an attacker with prior knowledge of a valid enrolled device identifier could potentially impersonate that device and receive configuration payloads intended for it. These payloads may contain sen

Affected products

fleetdm — fleet

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.