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CVE-2026-28252

Trane Tracer Concierge authentication bypass

9.8 CRITICALEPSS 0.35%
  1. Published12 Mar 2026

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Trane Tracer Concierge< 6.3.2310
Trane Tracer Sc+ Firmware< 6.3.2310
Trane Tracer Sc Firmware≤ 4.4 · 4.4

Remediation

Fixed in
Trane Tracer Concierge≥ 6.3.2310
Trane Tracer Sc+ Firmware≥ 6.3.2310

References

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Frequently asked

Is CVE-2026-28252 being actively exploited?

CVE-2026-28252 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.35%.

How severe is CVE-2026-28252?

CVE-2026-28252 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.35% probability of exploitation.

Which products are affected by CVE-2026-28252?

Affected products include Trane Tracer Concierge, Trane Tracer Sc+ Firmware, Trane Tracer Sc Firmware.

How do I fix CVE-2026-28252?

Upgrade affected software to a fixed version, for example Trane Tracer Concierge 6.3.2310, Trane Tracer Sc+ Firmware 6.3.2310 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-28252 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.