An exploitable remote code execution vulnerability exists in the Trane ComfortLink II firmware version 2.0.2 in DSS service.

published 2017-01-06 9y ago modified 2026-06-17 4mo ago also EUVD-2015-2956

cvss: 9.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 7.0%; EPSS 7.0% chance of exploitation in 30 days, percentile 94%
public exploits: 0; none known

An exploitable remote code execution vulnerability exists in the Trane ComfortLink II firmware version 2.0.2 in DSS service. An attacker who can connect to the DSS service on the Trane ComfortLink II device can send an overly long REG request that can overflow a fixed size stack buffer, resulting in arbitrary code execution.

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Exploit prediction

6.97% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

talosintelligence.com http://www.talosintelligence.com/reports/TALOS-2016-0027/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	9.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	10.0	AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

Trane ComfortLink II SCC firmware

Classification

Weakness

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

talosintelligence.com /reports/TALOS-2016-0027/
exploit, technical-description, third-party-advisory
securityfocus.com /bid/95118
vdb-entry

Sources

CVE List CVE-2015-2868
NVD CVE-2015-2868

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