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

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-40526
• https://twitter.com/ROPsicle/status/1438216078103044107?s=20