Missing Authorization vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge

published 2026-03-12 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-11633

cvss: 7.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits: 0; none known

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.

Patch / fix

fixed in 3

Trane Tracer SC v4.4 SP7
Trane Tracer SC+ v6.3.2310
Trane Tracer Concierge v6.3.2310

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-071-01 updated 2026-03-12 cvss 5.8

Trane Tracer SC, Tracer SC+, and Tracer Concierge

Trane Tracer Concierge <v6.3.2310 Trane Tracer SC <v4.4_SP7 Trane Tracer SC+ <v6.3.2310
affected: vendor fix

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 7 mo ago (2026-03-12)

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	6.9	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
CNA	4.0	6.9	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:X/V:X/RE:X/U:X
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

Trane Tracer SC
Trane Tracer SC+
Trane Tracer Concierge

Classification

Weakness

CWE-862 Missing Authorization

References

cisa.gov /news-events/ics-advisories/icsa-26-071-01
government-resource, third-party-advisory, us-government-resource

Sources

CVE List CVE-2026-28254
NVD CVE-2026-28254

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary