What is CVE-2025-63362?

CVE-2025-63362 is a critical-severity vulnerability in Waveshare Rs232\/485 To Wifi Eth \(B\), classified under CWE-620. CVSS score: 9.8/10. Published 2025-12-04.

How severe is CVE-2025-63362?

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

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

CVE-2025-63362

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 allows attackers to set the Administrator password and username as blank values, allowing attackers to bypass authentication.

Published 2025-12-04 · 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: 0.006 (45.4th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · 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-620

References

drive.google.com/file/d/1AGv9KWMTB71NJfIOncuNO6FyK0UAqxmL/view (Exploit, Third Party Advisory)
otsecverse.github.io/OTSecVerse/posts/Post-2/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-63362?: CVE-2025-63362 is a critical-severity vulnerability in Waveshare Rs232\/485 To Wifi Eth \(B\), classified under CWE-620. CVSS score: 9.8/10. Published 2025-12-04.
How severe is CVE-2025-63362?: Critical severity. CVSS v3 base score is 9.8 out of 10.