CVE-2023-23304: Garmin Connect-Iq

Critical severity, CVSS 9.1. EPSS: 0.6% chance of exploitation in the next 30 days.

The GarminOS TVM component in CIQ API version 2.1.0 through 4.1.7 allows applications with a specially crafted head section to use the `Toybox.SensorHistory` module without permission. A malicious application could call any functions from the `Toybox.SensorHistory` module without the user's consent and disclose potentially private or sensitive information.

Affected products

• Garmin Connect-Iq: from 2.1.0, up to and including 4.1.7

Published 2023-05-23. Last modified 2026-06-17.