Trane Tracer SC, Tracer SC+, and Tracer Concierge Use of Hard-Coded Credentials (CVE-2026-28255)

high Tenable OT Security Plugin ID 505315

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A Use of Hard-coded Credentials vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge could allow an attacker to disclose sensitive information and take over accounts.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original can be found at CISA.gov.

Plugin Details

Severity: High

ID: 505315

File Name: tenable_ot_trane_CVE-2026-28255.nasl

Version: 1.3

Type: Remote

Family: Tenable.ot

Published: 4/7/2026

Updated: 4/8/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-28255

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.2

Threat Score: 5.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:trane:tracer_sc%2b_firmware, cpe:/o:trane:tracer_sc_firmware

Required KB Items: Tenable.ot/Trane

Exploit Ease: No known exploits are available

Patch Publication Date: 3/12/2026

Vulnerability Publication Date: 3/12/2026

Reference Information

CVE: CVE-2026-28255

CWE: 798

ICSA: 26-071-01

Detections

Analytics