CVE-2023-23305

9.8 criticalEPSS 1.3%

Critical (9.8) in garmin connect-iq. EPSS 1.3% chance of exploitation in the next 30 days.

The GarminOS TVM component in CIQ API version 1.0.0 through 4.1.7 is vulnerable to various buffer overflows when loading binary resources. A malicious application embedding specially crafted resources could hijack the execution of the device's firmware.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.3% chance of exploitation in the next 30 days; higher than 70% of CVEs (scores of 2026-10-31)
CWE: CWE-120
Published: 2023-05-23
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

garmin:connect-iq

References

https://github.com/anvilsecure/garmin-ciq-app-research/blob/main/advisories/CVE-2023-23305.md
https://github.com/anvilsecure/garmin-ciq-app-research/blob/main/advisories/CVE-2023-23305.md
https://github.com/anvilsecure/garmin-ciq-app-research/blob/main/poc/GRMN-06.prg

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