What is CVE-2026-28253?

CVE-2026-28253 is a high-severity vulnerability in Trane Tracer Concierge, classified under CWE-789. CVSS score: 7.5/10. Published 2026-03-12.

How severe is CVE-2026-28253?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Trane Tracer Concierge

CVE-2026-28253

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

Published 2026-03-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (39.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002

Affected products

Weakness classification (CWE)

CWE-789

References

www.cisa.gov/news-events/ics-advisories/icsa-26-071-01 (US Government Resource, Third Party Advisory, government-resource)

Frequently asked questions

What is CVE-2026-28253?: CVE-2026-28253 is a high-severity vulnerability in Trane Tracer Concierge, classified under CWE-789. CVSS score: 7.5/10. Published 2026-03-12.
How severe is CVE-2026-28253?: High severity. CVSS v3 base score is 7.5 out of 10.