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CVE-2026-28256— Use of Hard-coded Credentials vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge

Quick assessment

Affected
Trane Tracer SC
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Trane Tracer SC等都是美国Trane公司的产品。Trane Tracer SC是一个监控与自动化管理的楼宇控制器。Trane Tracer SC+是一个监控与自动化管理的楼宇控制器。Trane Tracer Concierge是一个监控和管理建筑暖通空调设备运行状态的楼宇管理软件。 Trane多款产品存在安全漏洞，该漏洞源于使用硬编码安全相关常量，可能导致攻击者泄露敏感信息并接管账户。以下产品受到影响：Trane Tracer SC、Tracer SC+和Tracer Concierge。

AI Predicted 8.1 Difficulty: Easy EPSS 0.44% · P36

Possible ATT&CK Techniques 1 AI

T1552.005 · Cloud Instance Metadata API
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I. Basic Information for CVE-2026-28256

Vulnerability Information
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Vulnerability Title
Use of Hard-coded Credentials vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge
Source: CVE Program / CVE List V5
Vulnerability Description
A Use of Hard-coded, Security-relevant Constants vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge could allow an attacker to disclose sensitive information and take over accounts.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码、安全相关的常数
Source: CVE Program / CVE List V5
Vulnerability Title
Trane多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Trane Tracer SC等都是美国Trane公司的产品。Trane Tracer SC是一个监控与自动化管理的楼宇控制器。Trane Tracer SC+是一个监控与自动化管理的楼宇控制器。Trane Tracer Concierge是一个监控和管理建筑暖通空调设备运行状态的楼宇管理软件。 Trane多款产品存在安全漏洞，该漏洞源于使用硬编码安全相关常量，可能导致攻击者泄露敏感信息并接管账户。以下产品受到影响：Trane Tracer SC、Tracer SC+和Tracer Concierge。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Trane Tracer SC 0 ~ v4.4 SP7 -
Trane Tracer SC+ 0 ~ v6.3.2310 -
Trane Tracer Concierge 0 ~ v6.3.2310 -

II. Public POCs for CVE-2026-28256

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-28256

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Vendor Advisories for CVE-2026-28256 (1)

Same Patch Batch · Trane · 2026-03-12 · 5 CVEs total

CVE-2026-28252 Use of a Broken or Risky Cryptographic Algorithm vulnerability in Trane Tracer SC, Tracer
CVE-2026-28253 Memory Allocation with Excessive Size Value vulnerability in Trane Tracer SC, Tracer SC+,
CVE-2026-28254 Missing Authorization vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge
CVE-2026-28255 Use of Hard-coded Credentials vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Con

IV. Related Vulnerabilities

Same product: Tracer SC
Same vendor: Trane
Same weakness: CWE-547

V. Comments for CVE-2026-28256

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