CVE-2021-38450

Trane Tracer Code Injection

HIGH
8.8
CVSS Score
Published: October 27, 2021 at 12:48 AM UTC
Updated: June 17, 2026 at 04:02 AM UTC
3 products affected across 1 vendorTracer Sc+ FirmwareTracer ConciergeTracer SC

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Severity
HIGH8.8
Exploit prediction
EPSS 1%

Description

The affected controllers do not properly sanitize the input containing code syntax. As a result, an attacker could craft code to alter the intended controller flow of the software.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.5v < 5.5 SP35.5
Affected range stops below 5.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.5 SP3, so it looks safe — our inference, not a vendor statement
v < 4.4v < 5.54.45.5
Affected range stops below 4.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.5, so it looks safe — our inference, not a vendor statement
trane-tracer-sc (same device)
v < 4.4 SP7v < 5.5 SP3
Affected range stops below 4.4 SP7, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.5 SP3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRMThird Party AdvisoryUS Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-266-02

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-94NVD-CWE-Other

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