CVE-2026-28252 is a critical vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge devices, stemming from the use of a broken or risky cryptographic algorithm. With a CVSS score of 9.8 (Critical), this flaw allows an unauthenticated, remote attacker to bypass authentication with low complexity, gaining root-level access and full control over the affected device. While there is no evidence of active exploitation (KEV: No) and no public exploit code available, it has received minimal community discussion and media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 4.4CPE matchmatch criteria | cpe:2.3:o:trane:tracer_sc_firmware:*:*:*:*:*:*:*:* | ||
4.4CPE matchmatch criteria | cpe:2.3:o:trane:tracer_sc_firmware:4.4:service_pack1:*:*:*:*:*:* | ||
4.4CPE matchmatch criteria | cpe:2.3:o:trane:tracer_sc_firmware:4.4:service_pack2:*:*:*:*:*:* | ||
4.4CPE matchmatch criteria | cpe:2.3:o:trane:tracer_sc_firmware:4.4:service_pack3:*:*:*:*:*:* | ||
4.4CPE matchmatch criteria | cpe:2.3:o:trane:tracer_sc_firmware:4.4:service_pack4:*:*:*:*:*:* |
CVSS version used by this source: 4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.