How severe is CVE-2023-23301?

CVE-2023-23301 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-2023-23301 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-23301?

CVE-2023-23301 affects Garmin Connect-iq. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-23301?

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-2023-23301 published?

CVE-2023-23301 was published on 2023-05-23 and last updated on 2026-06-17.

CVE-2023-23301

CVE-2023-23301 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-125.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Garmin Connect-iq
Published: 2023-05-23
Last modified: 2026-06-17

Description

The `news` MonkeyC operation code in CIQ API version 1.0.0 through 4.1.7 fails to check that string resources are not extending past the end of the expected sections. A malicious CIQ application could craft a string that starts near the end of a section, and whose length extends past its end. Upon loading the string, the GarminOS TVM component may read out-of-bounds memory.

Frequently asked questions

What is CVE-2023-23301?: The `news` MonkeyC operation code in CIQ API version 1.0.0 through 4.1.7 fails to check that string resources are not extending past the end of the expected sections. A malicious CIQ application could craft a string that starts near the end of a section, and whose length extends past its end. Upon loading the string, the GarminOS TVM component may read out-of-bounds memory.
How severe is CVE-2023-23301?: CVE-2023-23301 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-2023-23301 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-23301?: CVE-2023-23301 affects Garmin Connect-iq. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-23301?: 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-2023-23301 published?: CVE-2023-23301 was published on 2023-05-23 and last updated on 2026-06-17.

References

https://github.com/anvilsecure/garmin-ciq-app-research/blob/main/advisories/CVE-2023-23301.md

Affected products (1)

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

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