What’s Vulnerable › Vulnerabilities

CVE-2021-37436

• Severity: medium (CVSS 4.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-07-24 · updated 2026-06-17

Description

Amazon Echo Dot devices through 2021-07-02 sometimes allow attackers, who have physical access to a device after a factory reset, to obtain sensitive information via a series of complex hardware and software attacks. NOTE: reportedly, there were vendor marketing statements about safely removing personal content via a factory reset. Also, the vendor has reportedly indicated that they are working on mitigations.

Affected products

• Amazon Echo Dot Firmware: through 2021-07-02

References

• https://arstechnica.com/gadgets/2021/07/passwords-in-amazon-echo-dots-live-on-even-after-you-factory-reset-them/
• https://dl.acm.org/doi/pdf/10.1145/3448300.3467820
• https://news.ycombinator.com/item?id=27943730
• https://www.cpomagazine.com/data-privacy/is-it-possible-to-make-iot-devices-private-amazon-echo-dot-does-not-wipe-personal-content-after-factory-reset/
• https://arstechnica.com/gadgets/2021/07/passwords-in-amazon-echo-dots-live-on-even-after-you-factory-reset-them/
• https://dl.acm.org/doi/pdf/10.1145/3448300.3467820
• https://news.ycombinator.com/item?id=27943730
• https://www.cpomagazine.com/data-privacy/is-it-possible-to-make-iot-devices-private-amazon-echo-dot-does-not-wipe-personal-content-after-factory-reset/

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