CVE-2026-28253 — HIGH (7.5)

Q: What is CVE-2026-28253?

CVE-2026-28253 is a vulnerability with a CVSS score of 7.5 (HIGH). 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

Q: How severe is CVE-2026-28253?

CVE-2026-28253 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-28253?

Check the references section above for vendor advisories and patch information. Affected products include: Trane Tracer Sc Firmware, Trane Tracer Sc, Trane Tracer Sc\+ Firmware, Trane Tracer Sc\+, Trane Tracer Concierge.

Vulnerability 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 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Trane	Tracer Sc Firmware	<= 4.4
Trane	Tracer Sc	All versions
Trane	Tracer Sc\+ Firmware	< 6.3.2310
Trane	Tracer Sc\+	All versions
Trane	Tracer Concierge	< 6.3.2310

Related Weaknesses (CWE)

CWE-789

References

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

FAQ

What is CVE-2026-28253?

CVE-2026-28253 is a vulnerability with a CVSS score of 7.5 (HIGH). 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

How severe is CVE-2026-28253?

CVE-2026-28253 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-28253?

Check the references section above for vendor advisories and patch information. Affected products include: Trane Tracer Sc Firmware, Trane Tracer Sc, Trane Tracer Sc\+ Firmware, Trane Tracer Sc\+, Trane Tracer Concierge.