CVE-2026-28253

highpriority · track · 30EPSS 0.003 · 24 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.31% (24th) EPSS

CVSS 7.5 · high

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 Memory Allocation with Excessive Size Value vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge could allow an unauthenticated attacker to cause a denial-of-service condition

remediations

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

A vendor fix is available.

FixedTracer Conciergecisa_csaf_ot
CVE-2026-28252, CVE-2026-28253, CVE-2026-28254: Tracer SC+ version v6.30.2313
FixedTracer SCcisa_csaf_ot
CVE-2026-28252, CVE-2026-28253, CVE-2026-28254: Tracer SC+ version v6.30.2313
FixedTracer SC+cisa_csaf_ot
CVE-2026-28252, CVE-2026-28253, CVE-2026-28254: Tracer SC+ version v6.30.2313

cvss

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

8.7

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–8.7

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · CISA US

v4.08.7highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.08.7highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/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:Xsecondary · ics-cert@hq.dhs.gov US

v4.06.6mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/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)

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-789USCWE-789US

affected products (13)

Products and version ranges known to be affected.

Trane Tracer Concierge: <v6.3.2310all versionscisa_csaf_otUS
Trane Tracer SC+: <v6.3.2310all versionscisa_csaf_otUS
Trane Tracer SC: <v4.4_SP7all versionscisa_csaf_otUS
Trane Tracer Concierge< v6.3.2310cisa_csaf_otUS
Trane Tracer SC< v4.4_SP7cisa_csaf_otUS
Trane Tracer SC+< v6.3.2310cisa_csaf_otUS
Trane Tracer Concierge0 → v6.3.2310enisa_euvdEU
Trane Tracer SC0 → v4.4 SP7enisa_euvdEU
Trane Tracer SC+0 → v6.3.2310enisa_euvdEU
trane tracer concierge< 6.3.2310nvdUScpe:2.3:a:trane:tracer_concierge:*:*:*:*:*:*:*:*
trane tracer sc firmware≤ 4.4nvdUScpe:2.3:o:trane:tracer_sc_firmware:*:*:*:*:*:*:*:*
trane tracer sc firmware= 4.4nvdUScpe:2.3:o:trane:tracer_sc_firmware:*:*:*:*:*:*:*:*
trane tracer sc+ firmware< 6.3.2310nvdUScpe:2.3:o:trane:tracer_sc\+_firmware:*:*:*:*:*:*:*:*

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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2026-03-12modified 2026-06-17

references (3)

External citations — patches, advisories, analysis.

https://www.cisa.gov/news-events/ics-advisories/icsa-26-071-01 cnnvd
https://www.cisa.gov/news-events/ics-advisories/icsa-26-071-01 enisa_euvd
https://www.cisa.gov/news-events/ics-advisories/icsa-26-071-01Third Party AdvisoryUS Government Resourcenvd

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