CVE-2026-28252

critical · 9.2

A Use of a Broken or Risky Cryptographic Algorithm vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge could allow an attacker to bypass authentication and gain root-level access to the device.

9.2

CVSS

0.2%

EPSS (exploit prob.)

12th

EPSS percentile

2026-03-12

Published

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

Weaknesses

CWE-327

Affected products

Vendor	Product	Affected versions
trane	tracer_sc_firmware	<= 4.4
trane	tracer_sc_firmware	4.4
trane	tracer_sc_firmware	4.4
trane	tracer_sc_firmware	4.4
trane	tracer_sc_firmware	4.4
trane	tracer_sc_firmware	4.4
trane	tracer_sc_firmware	4.4
trane	tracer_sc	all versions
trane	tracer_sc+_firmware	< 6.3.2310
trane	tracer_sc+	all versions
trane	tracer_concierge	< 6.3.2310

Check a specific version with /api/v1/cve/match.

References

https://www.cisa.gov/news-events/ics-advisories/icsa-26-071-01

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-28252