Home/CVE/A Use of a Broken or Risky Cryptographic Algorithm vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge co
CVE

CVE-2026-28252

A Use of a Broken or Risky Cryptographic Algorithm vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge co

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.

CRITICAL · CVSS 9.8 EPSS 0.0004
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-327Use of a Broken or Risky Cryptographic Algorithm
▤

Affected Products & Versions

4
trane tracer sc firmware<= 4.4
trane tracer sc firmwareall versions
trane tracer sc\+ firmware< 6.3.2310
trane tracer concierge< 6.3.2310
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · ics-cert@hq.dhs.gov
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD12 Mar 2026 · 06:16 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
cisa-csafcisa-csaf-csaf_files-OT-white-2026-icsa-26-071-01
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.cisa.gov/news-events/ics-advisories/icsa-26-071-01Third Party AdvisoryUS Government Resource
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