Path Traversal in Yiiot Xy-3820
CVE-2025-29660
A vulnerability exists in the daemon process of the Yi IOT XY-3820 v6.0.24.10, which exposes a TCP service on port 6789. This service lacks proper input validation, allowing attackers to execute arbitrary scripts present on the device by sending specially crafted TCP requests using directory traversal techniques.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
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: 0.012 (68.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: +0.000
Affected products
- Yiiot Xy-3820
- Yiiot Xy-3820 Firmware — versions 6.0.24.10
Weakness classification (CWE)
References
- github.com/Yasha-ops/RCE-YiIOT (Exploit, Vendor Advisory)
- github.com/Yasha-ops/vulnerability-research/tree/master/CVE-2025-29660 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-29660?
- CVE-2025-29660 is a critical-severity vulnerability in Yiiot Xy-3820, classified under Path Traversal. CVSS score: 9.8/10. Published 2025-04-21.
- How severe is CVE-2025-29660?
- Critical severity. CVSS v3 base score is 9.8 out of 10.