Detections
Analytics
Trane Tracer SC, Tracer SC+, and Tracer Concierge Use of a Broken or Risky Cryptographic Algorithm (CVE-2026-28252)
critical Tenable OT Security Plugin ID 505312
Synopsis
The remote OT asset is affected by a vulnerability.Description
A Use of a Broken or Risky Cryptographic Algorithm vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge could allow an attacker to bypass authentication and gain root-level access to the device.This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.
Solution
Refer to the vendor advisory.See Also
https://www.cisa.gov/news-events/ics-advisories/icsa-26-071-01
Plugin Details
Severity: Critical
ID: 505312
File Name: tenable_ot_trane_CVE-2026-28252.nasl
Version: 1.2
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-2026-28252
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: Critical
Base Score: 9.2
Threat Score: 7.2
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/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-2026-28252
CWE: 327
ICSA: 26-071-01