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Vulnerability record · CVE-2026-28254 · published 12 March 2026

CVE-2026-28254: Trane tracer sc firmware missing authorization vulnerability

Trane · Tracer Sc Firmware

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.

6.9 CVSS 4.0 Medium EPSS 0.42% · top 66.5% CWE-862 · Missing authorization
6.9CVSS 4.0 base score
0.42%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/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:

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.cisa.gov/news-events/ics-advisories/icsa-26-071-01 Third Party AdvisoryUS Government Resource

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.2CVE-2026-28252Trane tracer sc firmware broken cryptographic algorithm vulnerabilityA Use of a Broken or Risky Cryptographic Algorithm vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge could allow an attacker to bypa…EPSS 0.35%8.8CVE-2021-38450Trane tracer concierge code injection vulnerabilityThe affected controllers do not properly sanitize the input containing code syntax. As a result, an attacker could craft code to alter the intended c…EPSS 1.0%8.7CVE-2026-28253Trane tracer sc firmware vulnerabilityA Memory Allocation with Excessive Size Value vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge could allow an unauthenticated attac…EPSS 0.49%8.2CVE-2026-28255Trane tracer sc firmware hard-coded credentials vulnerabilityA Use of Hard-coded Credentials vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge could allow an attacker to disclose sensitive info…EPSS 0.48%6.9CVE-2026-28256Trane tracer sc\+ firmware vulnerabilityA Use of Hard-coded, Security-relevant Constants vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge could allow an attacker to disclo…EPSS 0.44%6.1CVE-2021-42534Trane tracer sc firmware cross-site scripting vulnerabilityThe affected product’s web application does not properly neutralize the input during webpage generation, which could allow an attacker to inject code…EPSS 0.61%9.9CVE-2026-84869ScreenConnect client allows unauthorized file transfer and execution in remote sessionsA flaw in the ConnectWise ScreenConnect client lets files be transferred and executed inside an active remote session without authorization or Host c…KEVEPSS 0.92%analysed7.8CVE-2022-0492Linux kernel cgroups v1 release_agent privilege escalation and container escapeThe Linux kernel's cgroup_release_agent_write in kernel/cgroup/cgroup-v1.c mishandles authorization, letting the cgroups v1 release_agent feature be …KEVEPSS 5.5%analysed

Source: NIST National Vulnerability Database (record CVE-2026-28254), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.