CVE-2026-28256

EUVD-2026-11637
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
tranetracer_sc\+_firmware
𝑥
< 6.3.2310
tranetracer_sc_firmware
𝑥
≤ 4.4
tranetracer_sc_firmware
4.4:service_pack1
tranetracer_sc_firmware
4.4:service_pack2
tranetracer_sc_firmware
4.4:service_pack3
tranetracer_sc_firmware
4.4:service_pack4
tranetracer_sc_firmware
4.4:service_pack5
tranetracer_sc_firmware
4.4:service_pack6
tranetracer_concierge
𝑥
< 6.3.2310
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.cisa.gov/news-events/ics-advisories/icsa-26-071-01