CVEvulnerability
CVE-2021-27662
8.1 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-09-15
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
- CVSS 3.1 ([email protected])
- 8.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-294
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
Affected configurations
• johnsoncontrols kantech kt-1 door controller firmware (<= 3.01)
Related
Weakness · CWE (1)
- CWE-294 Authentication Bypass by Capture-replay weakness
References
- https://us-cert.gov/ics/advisories Third Party Advisory, US Government Resource
- https://www.johnsoncontrols.com/cyber-solutions/security-advisories Vendor Advisory
- https://us-cert.gov/ics/advisories Third Party Advisory, US Government Resource
- https://www.johnsoncontrols.com/cyber-solutions/security-advisories Vendor Advisory