CVE-2023-23301

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-05-23 · updated 2026-06-17
Weakness: CWE-125

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.

Affected products

Garmin Connect-Iq: from 1.0.0 through 4.1.7

References

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

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