CVE-2021-40526: Onepeloton TTR01 Firmware

Medium severity, CVSS 5.3. EPSS: 1% chance of exploitation in the next 30 days.

Incorrect calculation of buffer size vulnerability in Peleton TTR01 up to and including PTV55G allows a remote attacker to trigger a Denial of Service attack through the GymKit daemon process by exploiting a heap overflow in the network server handling the Apple GymKit communication. This can lead to an Apple MFI device not being able to authenticate with the Peleton Bike

Affected products

• Onepeloton TTR01 Firmware: up to and including ptv55g

Published 2021-10-25. Last modified 2026-06-17.