CVE-2023-23306

CRITICAL

Garmin Connect IQ 2.2.0-4.1.7 - Out-of-Bounds Write via Toybox.Ant.BurstPayload.add

Title source: llm
STIX 2.1

Description

The `Toybox.Ant.BurstPayload.add` API method in CIQ API version 2.2.0 through 4.1.7 suffers from a type confusion vulnreability, which can result in an out-of-bounds write operation. A malicious application could create a specially crafted `Toybox.Ant.BurstPayload` object, call its `add` method, override arbitrary memory and hijack the execution of the device's firmware.

References (2)

Core 2

Scores

CVSS v3 9.8
EPSS 0.0121
EPSS Percentile 64.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-787
Status published
Products (1)
garmin/connect-iq 2.2.0 - 4.1.7
Published May 23, 2023
Tracked Since Feb 18, 2026