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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.81.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "fleet", "source": "cna", "vendor": "fleetdm"}, "product": "fleet", "vendor": "fleetdm"}], "analysis": {"en": {"generated_at": "2026-03-31T20:22:06.752102+00:00", "value": {"mitigation_remediation": ["Upgrade Fleet to version 4.81.1 or later.", "If an upgrade is not immediately possible, restrict host transfer permissions to the appropriate teams and disable the transfer API for untrusted users.", "Audit team member roles to ensure only trusted users have team maintainer privileges.", "Monitor API logs for suspicious host transfer activity."], "summary": {"action": "Apply Patch", "impact": "Privilege escalation through unauthorized host transfer and full host control"}, "threat_synthesis": {"affected_systems": "Installations of FleetDM Fleet before version 4.81.1 are affected. The software is available as open\u2011source, and any deployment of those legacy versions is susceptible. The impact applies across all teams within an organization that use Fleet to manage hosts.", "description_and_impact": "Broken access control in the host transfer API of Fleet open\u2011source device management allows a team maintainer to move hosts from any team into their own team, bypassing isolation boundaries. Once the host is transferred, the attacker gains full control, including executing scripts with root privileges, effectively enabling privilege escalation. The vulnerability is a classic missing authorization check, classified as CWE\u2011862.", "risk_and_exploitability": "The CVSS score of 4.9 indicates moderate severity, and the EPSS score is below 1\u202f%, meaning that exploitation probability is currently low. The vulnerability is not listed in the CISA KEV catalog. An attacker must have a team maintainer role and must invoke the host transfer API; no authenticated privilege escalation beyond team boundaries is needed. If discovered, the API call can be easily scripted, so internal malicious users or compromised accounts could exploit it."}}}}, "created": "2026-03-27T20:27:43.210699+00:00", "updated": "2026-04-02T07:55:26.745861+00:00", "vendors": ["fleetdm", "fleetdm$PRODUCT$fleet"]}