CVE-2026-27871
Received Received - Intake

Use of Broken Cryptographic Algorithm in Johnson Controls TL280

Vulnerability report for CVE-2026-27871, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-08-14

Last updated on: 2026-08-14

Assigner: Johnson Controls

Description

Cwe-327 Use of a Broken or Risky Cryptographic Algorithm vulnerability in Johnson Controls TL280 allows Cryptanalytic Attack. This issue affects TL280: before 5.63.

CVSS Scores

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Meta Information

Published
2026-08-14
Last Modified
2026-08-14
Generated
2026-08-15
AI Q&A
2026-08-14
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
johnson_controls tl280 to 5.63 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-327 The product uses a broken or risky cryptographic algorithm or protocol.

Attack-Flow Graph

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Executive Summary

This vulnerability involves the use of a broken or risky cryptographic algorithm in Johnson Controls TL280 devices running versions before 5.63. It allows for cryptanalytic attacks, meaning attackers could exploit weaknesses in the encryption to intercept or manipulate data.

Impact Analysis

The vulnerability could allow unauthorized access to sensitive data transmitted or stored by the TL280 device. Attackers might decrypt communications, alter device behavior, or gain control over connected systems, potentially disrupting operations or compromising security.

Mitigation Strategies

Update TL280 to version 5.63 or later to address the cryptographic algorithm vulnerability. Monitor Johnson Controls' security advisories for further updates and apply patches as they become available.

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