What is CVE-2025-29659?

CVE-2025-29659 is a critical-severity vulnerability in Yiiot Xy-3820, classified under Improper Authorization. CVSS score: 9.8/10. Published 2025-04-21.

How severe is CVE-2025-29659?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Yiiot Xy-3820

CVE-2025-29659

Yi IOT XY-3820 6.0.24.10 is vulnerable to Remote Command Execution via the "cmd_listen" function located in the "cmd" binary.

Published 2025-04-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.015 (73.2th percentile), scored 2026-10-04.

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.015 · change: +0.001

Affected products

Yiiot Xy-3820
Yiiot Xy-3820 Firmware — versions 6.0.24.10

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

github.com/Yasha-ops/RCE-YiIOT (Exploit, Vendor Advisory)
github.com/Yasha-ops/vulnerability-research/tree/master/CVE-2025-29659 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-29659?: CVE-2025-29659 is a critical-severity vulnerability in Yiiot Xy-3820, classified under Improper Authorization. CVSS score: 9.8/10. Published 2025-04-21.
How severe is CVE-2025-29659?: Critical severity. CVSS v3 base score is 9.8 out of 10.