Garmin GarminOS up to 4.1.7 TVM buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Garmin GarminOS up to 4.1.7. Affected by this vulnerability is an unknown functionality of the component TVM. Executing a manipulation can lead to buffer overflow. This vulnerability appears as CVE-2023-23305. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability was found in Garmin GarminOS up to 4.1.7. It has been declared as critical. This vulnerability affects an unknown function of the component TVM. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was presented 05/24/2023. The advisory is shared for download at github.com. This vulnerability was named CVE-2023-23305 since 01/11/2023. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/07/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-27405). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.1
VulDB Meta Temp Score: 9.0

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 9.8
CNA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/11/2023 🔍
05/24/2023 +132 days 🔍
05/24/2023 +0 days 🔍
10/07/2025 +867 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2023-23305 (🔍)
GCVE (CVE): GCVE-0-2023-23305
GCVE (VulDB): GCVE-100-229768
EUVD: 🔍

Entryinfo

Created: 05/24/2023 07:22
Updated: 10/07/2025 12:57
Changes: 05/24/2023 07:22 (38), 06/16/2023 15:43 (11), 01/31/2025 17:19 (26), 10/07/2025 12:57 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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