CVE-2021-27662

HighCVSS 8.1/10Last modified Jun 17, 2026

Description

The KT-1 door controller is susceptible to replay or man-in-the-middle attacks where an attacker can record and replay TCP packets. This issue affects Johnson Controls KT-1 all versions up to and including 3.01

Metrics

CVSS 3.1 8.1/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-294

Affected software

No affected versions have been published.

Timeline

Published: Sep 15, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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