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CVE-2021-27662

HIGH
Published 2021-09-15T12:04:22.918826Z
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Expert Analysis

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CVSS Score

V3.1
8.6
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.002
probability
of exploitation in the wild

There is a 0.2% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.402
Higher than 40.2% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
LOW
Integrity
HIGH
Availability
LOW

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

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Johnson Controls

KT-1

Affected Versions:

all versions up to and including 3.01

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-fv2j-64xc-r4hr

Advisory Details

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

CVSS Scoring

CVSS Score

7.5

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-27662
WEB https://us-cert.gov/ics/advisories
WEB https://www.johnsoncontrols.com/cyber-solutions/security-advisories

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: May 24, 2022

References

https://www.johnsoncontrols.com/cyber-solutions/security-advisories
https://us-cert.gov/ics/advisories
Published: 2021-09-15T12:04:22.918826Z
Last Modified: 2024-09-17T00:31:51.342Z
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