CVE-2026-23999 (GCVE-0-2026-23999)

Vulnerability from cvelistv5 – Published: 2026-02-26 02:45 – Updated: 2026-02-26 15:15
VLAI?
Title
Fleet: Device lock PIN can be predicted if lock time is known
Summary
Fleet is open source device management software. In versions prior to 4.80.1, Fleet generated device lock and wipe PINs using a predictable algorithm based solely on the current Unix timestamp. Because no secret key or additional entropy was used, the resulting PIN could potentially be derived if the approximate time the device was locked is known. Fleet’s device lock and wipe commands generate a 6-digit PIN that is displayed to administrators for unlocking a device. In affected versions, this PIN was deterministically derived from the current timestamp. An attacker with physical possession of a locked device and knowledge of the approximate time the lock command was issued could theoretically predict the correct PIN within a limited search window. However, successful exploitation is constrained by multiple factors: Physical access to the device is required, the approximate lock time must be known, the operating system enforces rate limiting on PIN entry attempts, attempts would need to be spread over, and device wipe operations would typically complete before sufficient attempts could be made. As a result, this issue does not allow remote exploitation, fleet-wide compromise, or bypass of Fleet authentication controls. Version 4.80.1 contains a patch. No known workarounds are available.
Severity ?
0.6 (Low)
CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U
CWE
  • CWE-330 - Use of Insufficiently Random Values
Assigner
References
Impacted products
Vendor Product Version
fleetdm fleet Affected: < 4.80.1
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Sin embargo, la explotaci\u00f3n exitosa est\u00e1 limitada por m\u00faltiples factores: Se requiere acceso f\u00edsico al dispositivo, se debe conocer la hora aproximada de bloqueo, el sistema operativo impone l\u00edmites de velocidad en los intentos de entrada del PIN, los intentos tendr\u00edan que distribuirse, y las operaciones de borrado del dispositivo normalmente se completar\u00edan antes de que se pudieran realizar suficientes intentos. Como resultado, este problema no permite la explotaci\u00f3n remota, el compromiso de toda la flota o la elusi\u00f3n de los controles de autenticaci\u00f3n de Fleet. La versi\u00f3n 4.80.1 contiene un parche. 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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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