Is CVE-2026-28253 actively exploited?

CVE-2026-28253 has no public evidence of in-the-wild exploitation as of 2026-03-27.

What is the CVSS score for CVE-2026-28253?

CVE-2026-28253 has a CVSS score of 8.7 (HIGH severity). Vector: CVSS: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:X.

How do I patch CVE-2026-28253?

Patch guidance is available from trane security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-28253.

Fix CVE-2026-28253 - HIGH trane tracer sc firmware

Q: Which products are affected by CVE-2026-28253?

9 products: trane tracer sc firmware, trane tracer sc firmware, trane tracer sc firmware, trane tracer sc firmware, trane tracer sc firmware, and 4 more.

Description

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

CVSS Metrics

Vector: CVSS: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:X
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-789

Metadata

Primary Vendor: TRANE
Published: 3/12/2026
Last Modified: 3/27/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

trane : tracer_sc_firmwaretrane : tracer_sc_firmwaretrane : tracer_sc_firmwaretrane : tracer_sc_firmwaretrane : tracer_sc_firmwaretrane : tracer_sc_firmwaretrane : tracer_sc_firmwaretrane : tracer_sc\+_firmwaretrane : tracer_concierge

Remediation Guidance

Executive Summary

View on NIST NVD