CVE-2021-33887
Insufficient verification of data authenticity in Peloton TTR01 up to and including PTV55G allows...
Insufficient verification of data authenticity in Peloton TTR01 up to and including PTV55G allows an attacker with physical access to boot into a modified kernel/ramdisk without unlocking the bootloader.
Attack profile
How easy it is to exploit
- Attack vector
- Physical
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Insufficient verification of data authenticity in Peloton TTR01 up to and including PTV55G allows an attacker with physical access to boot into a modified kernel/ramdisk without unlocking the bootloader.
- Record
CVE-2021-33887- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.2 High
AV:L/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-345
- Updated
- 2026-11-02
CVE List No score
Insufficient verification of data authenticity in Peloton TTR01 up to and including PTV55G allows an attacker with physical access to boot into a modified kernel/ramdisk without unlocking the bootloader.
- Record
CVE-2021-33887- Updated
- 2026-11-02
EUVDEUVD-2021-20560 No score
Insufficient verification of data authenticity in Peloton TTR01 up to and including PTV55G allows an attacker with physical access to boot into a modified kernel/ramdisk without unlocking the bootloader.
- Record
EUVD-2021-20560- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9h8m-8m65-p47h No score
Insufficient verification of data authenticity in Peloton TTR01 up to and including PTV55G allows...
Insufficient verification of data authenticity in Peloton TTR01 up to and including PTV55G allows an attacker with physical access to boot into a modified kernel/ramdisk without unlocking the bootloader.
- Record
GHSA-9h8m-8m65-p47h- Weakness
- CWE-345
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-33887 is a medium vulnerability (CVSS 6.8) in Onepeloton Ttr01 Firmware, published June 15, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 18th percentile. No source names a fixed version.