What is CVE-2025-63361?

CVE-2025-63361 is a medium-severity vulnerability in Waveshare Rs232\/485 To Wifi Eth \(B\), classified under Insufficiently Protected Credentials. CVSS score: 5.7/10. Published 2025-12-04.

How severe is CVE-2025-63361?

Medium severity. CVSS v3 base score is 5.7 out of 10.

Vulnerability in Waveshare Rs232\/485 To Wifi Eth \(B\)

CVE-2025-63361

Waveshare RS232/485 TO WIFI ETH (B) Serial to Ethernet/Wi-Fi Gateway Firmware V3.1.1.0: HW 4.3.2.1: Webpage V7.04T.07.002880.0301 was discovered to render the Administrator password in plaintext.

Published 2025-12-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (21.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Waveshare Rs232\/485 To Wifi Eth \(B\) — versions 4.3.2.1
Waveshare Rs232\/485 To Wifi Eth \(B\) Firmware — versions 3.1.1.0

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

References

drive.google.com/file/d/1AGv9KWMTB71NJfIOncuNO6FyK0UAqxmL/view (Exploit, Third Party Advisory)
otsecverse.github.io/OTSecVerse/posts/Post-1/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-63361?: CVE-2025-63361 is a medium-severity vulnerability in Waveshare Rs232\/485 To Wifi Eth \(B\), classified under Insufficiently Protected Credentials. CVSS score: 5.7/10. Published 2025-12-04.
How severe is CVE-2025-63361?: Medium severity. CVSS v3 base score is 5.7 out of 10.