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CVE-2021-40526

MEDIUMCVSS 5.3/10EPSS 0.95%

Last modified

CVE-2021-40526 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. EPSS estimates a 0.95% chance of exploitation in the next 30 days.

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

Metrics

CVSS 3.1
5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS Probability
0.95%

56.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
OnepelotonTtr01 Firmware<= ptv55g

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-40526?
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
How severe is CVE-2021-40526?
CVE-2021-40526 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.95% probability of exploitation in the next 30 days.
How do I fix CVE-2021-40526?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-40526?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST