CVE-2026-28256

criticalpriority · track · 39EPSS 0.003 · 19 %ileEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.27% (19th) EPSS
CVSS 9.8 · critical
Is it mine?
13 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

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.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • FixedTracer Conciergecisa_csaf_ot

    Trane has released the following versions of Tracer SC+ for users to upgrade to:

  • FixedTracer SCcisa_csaf_ot

    Trane has released the following versions of Tracer SC+ for users to upgrade to:

  • FixedTracer SC+cisa_csaf_ot

    Trane has released the following versions of Tracer SC+ for users to upgrade to:

  • MitigationTracer Conciergecisa_csaf_ot

    CVE-2026-28256: Trane has implemented enhanced security controls which have been communicated to their customers. For more information, contact Trane.

  • MitigationTracer SCcisa_csaf_ot

    CVE-2026-28256: Trane has implemented enhanced security controls which have been communicated to their customers. For more information, contact Trane.

  • MitigationTracer SC+cisa_csaf_ot

    CVE-2026-28256: Trane has implemented enhanced security controls which have been communicated to their customers. For more information, contact Trane.

02

cvss

Technical severity, 0–10. One row per scoring source.

9.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–critical · 3.6–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9
v3.15.8mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:Nsecondary · CISA US
v4.06.9mediumCVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:Nsecondary · ENISA EU
v4.06.9mediumCVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/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:Xsecondary · ics-cert@hq.dhs.gov US
v4.03.6lowCVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:U/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:Xsecondary · CVSS-BT (t0sche)
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-547USCWE-547US
05

affected products (13)

Products and version ranges known to be affected.

06

advisories (1)

Vendor and ecosystem advisories describing this.

  • ICSA-26-071-01Trane Tracer SC, Tracer SC+, and Tracer Concierge2026-03-12icsa · cisa_csaf_otUS

    Successful exploitation of these vulnerabilities could allow an attacker to disclose sensitive information, execute arbitrary commands, or perform a denial-of-service on the product.

07

also known as (3)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcisa_csaf_otnvdNVDCVE.orgMITRE
published 2026-03-12modified 2026-06-17
09

references (3)

External citations — patches, advisories, analysis.

scry

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