CVE-2023-23305 Memory corruption in n/a

Critical 9.8 Published 23 May 2023 Updated 31 Jan 2025

A malicious application can exploit buffer overflows in the GarminOS TVM component to hijack device firmware execution.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-23305?

CVE-2023-23305 is a critical memory corruption vulnerability in n/a, published on 23 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-120

Which versions are affected by CVE-2023-23305?

It affects 1 product.

Products include Garmin Connect-Iq.

How do I fix CVE-2023-23305?

No fix has been published for CVE-2023-23305 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2023-23305 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-23305 exists.

Sources

Also known as GHSA-g753-vxgm-rphm.