How severe is CVE-2023-23298?

CVE-2023-23298 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-23298 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-23298?

CVE-2023-23298 affects Garmin Connect-iq. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-23298?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-23298 published?

CVE-2023-23298 was published on 2023-05-23 and last updated on 2026-06-17.

CVE-2023-23298

CVE-2023-23298 is a critical-severity vulnerability in Garmin Connect-iq with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-190.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Garmin Connect-iq
Published: 2023-05-23
Last modified: 2026-06-17

Description

The `Toybox.Graphics.BufferedBitmap.initialize` API method in CIQ API version 2.3.0 through 4.1.7 does not validate its parameters, which can result in integer overflows when allocating the underlying bitmap buffer. A malicious application could call the API method with specially crafted parameters and hijack the execution of the device's firmware.

Frequently asked questions

What is CVE-2023-23298?: The `Toybox.Graphics.BufferedBitmap.initialize` API method in CIQ API version 2.3.0 through 4.1.7 does not validate its parameters, which can result in integer overflows when allocating the underlying bitmap buffer. A malicious application could call the API method with specially crafted parameters and hijack the execution of the device's firmware.
How severe is CVE-2023-23298?: CVE-2023-23298 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-23298 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-23298?: CVE-2023-23298 affects Garmin Connect-iq. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-23298?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-23298 published?: CVE-2023-23298 was published on 2023-05-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:garmin:connect-iq:*:*:*:*:*:*:*:*

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