CVE-2026-28252 Use of a Broken or Risky Cryptographic Algorithm vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge

Critical 9.2 Published 12 Mar 2026 Updated 13 Mar 2026

Weak cryptography in Trane building automation devices allows attackers to bypass authentication and gain root access.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-28252?

CVE-2026-28252 is a critical vulnerability in Trane Tracer Concierge, published on 12 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-327

Which versions are affected by CVE-2026-28252?

It affects 3 products.

Products include Trane Tracer Concierge, Trane Tracer Sc\+ Firmware, Trane Tracer Sc Firmware.

How do I fix CVE-2026-28252?

No fix has been published for CVE-2026-28252 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-28252 being exploited?

There is no known exploitation of CVE-2026-28252 in the wild and no public exploit code.

Sources

Also known as GHSA-mvqv-5q67-w9vh.