Vulnerability · Published Mar 12, 2026 · Assigned by icscert
CVE-2026-28253Memory Allocation with Excessive Size Value vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge
High 8.7
In plain English
A high-severity security flaw in Tracer Concierge from Trane. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities).
Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.3%top 75.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Trane | Tracer SC | 0 – before v4.4 SP7 |
| Trane | Tracer SC+ | 0 – before v6.3.2310 |
| Trane | Tracer Concierge | 0 – before v6.3.2310 |
Weakness: CWE-789 · 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
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-071-01 government-resource