What is CVE-2026-28254?

CVE-2026-28254 is a high-severity vulnerability in Trane Tracer Concierge, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-03-12.

How severe is CVE-2026-28254?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Trane Tracer Concierge

CVE-2026-28254

A Missing Authorization vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge could allow an unauthenticated attacker to access sensitive information through unprotected APIs.

Vulnerability class: Broken Access Control

EPSS: 0.003 (18.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Trane Tracer Concierge — versions 0
Trane Tracer_concierge
Trane Tracer Sc — versions 0
Trane Tracer Sc+ — versions 0
Trane Tracer_sc
Trane Tracer_sc\+
Trane Tracer_sc\+_firmware
Trane Tracer_sc_firmware — versions 4.4

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

ics-cert@hq.dhs.gov (US Government Resource, Third Party Advisory, government-resource)

Frequently asked questions

What is CVE-2026-28254?: CVE-2026-28254 is a high-severity vulnerability in Trane Tracer Concierge, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-03-12.
How severe is CVE-2026-28254?: High severity. CVSS v3 base score is 7.5 out of 10.