What is CVE-2018-20007?

CVE-2018-20007 is a medium-severity vulnerability in Yeelight Smart Ai Speaker, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 6.8/10. Published 2019-05-16.

How severe is CVE-2018-20007?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Vulnerability in Yeelight Smart Ai Speaker

CVE-2018-20007

Yeelight Smart AI Speaker 3.3.10_0074 devices have improper access control over the UART interface, allowing physical attackers to obtain a root shell. The attacker can then exfiltrate the audio data, read cleartext Wi-Fi credentials in a log file, or access other sensitive device and user information.

Published 2019-05-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (39.6th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Yeelight Smart Ai Speaker
Yeelight Smart Ai Speaker Firmware — versions 3.3.10_0074

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

forum.yeelight.com/ (Vendor Advisory)
payatu.com/yeelight-smart-ai-speaker-responsible-disclosure/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-20007?: CVE-2018-20007 is a medium-severity vulnerability in Yeelight Smart Ai Speaker, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 6.8/10. Published 2019-05-16.
How severe is CVE-2018-20007?: Medium severity. CVSS v3 base score is 6.8 out of 10.