CVE-2023-23304

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-05-23 · updated 2026-06-17
Weakness: CWE-863

Description

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 through 4.1.7

References

https://developer.garmin.com/connect-iq/api-docs/Toybox/SensorHistory.html
https://github.com/anvilsecure/garmin-ciq-app-research/blob/main/advisories/CVE-2023-23304.md
https://developer.garmin.com/connect-iq/api-docs/Toybox/SensorHistory.html
https://github.com/anvilsecure/garmin-ciq-app-research/blob/main/advisories/CVE-2023-23304.md

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