What’s Vulnerable › Vulnerabilities

CVE-2021-40526

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-10-25 · updated 2026-06-17
• Weakness: CWE-131

Description

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: through ptv55g

References

• https://twitter.com/ROPsicle/status/1438216078103044107?s=20
• https://twitter.com/ROPsicle/status/1438216078103044107?s=20

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