Is CVE-2026-28256 actively exploited?

CVE-2026-28256 has no public evidence of in-the-wild exploitation as of 2026-03-27.

What is the CVSS score for CVE-2026-28256?

CVE-2026-28256 has a CVSS score of 6.9 (MEDIUM severity). Vector: 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

How do I patch CVE-2026-28256?

Patch guidance is available from trane security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-28256.

CVE-2026-28256 - remediation guidance & executive summary

Q: Which products are affected by CVE-2026-28256?

9 products: trane tracer sc\+ firmware, trane tracer sc firmware, trane tracer sc firmware, trane tracer sc firmware, trane tracer sc firmware, and 4 more.

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.

CVSS Metrics

Vector: 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector: network
Complexity: high
Privileges: high
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-547

Metadata

Primary Vendor: TRANE
Published: 3/12/2026
Last Modified: 3/27/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

trane : tracer_sc\+_firmwaretrane : tracer_sc_firmwaretrane : tracer_sc_firmwaretrane : tracer_sc_firmwaretrane : tracer_sc_firmwaretrane : tracer_sc_firmwaretrane : tracer_sc_firmwaretrane : tracer_sc_firmwaretrane : tracer_concierge

Remediation Guidance

Executive Summary

View on NIST NVD