CVE-2025-63362Public exploitNetwork attack vector

Administrative access via blank credential acceptance

Published Dec 4, 2025 · Updated Dec 8, 2025

Authentication bypass in Waveshare RS232/485 TO WIFI ETH (B) firmware 3.1.1.0 allows remote attackers to gain administrative access. The /EN/do_cmd.html endpoint stores empty admuser and SYSPS values without validation, and the authentication routine accepts the empty strings on the web and Telnet interfaces. Network access to the management interface is sufficient; successful exploitation permits unrestricted administrative control and configuration changes.

CVSS severity9.8
Critical
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Waveshare RS232/485 TO WIFI ETH (B) firmware 3.1.1.0 allows remote attackers to gain administrative access. The /EN/do_cmd.html endpoint stores empty admuser and SYSPS values without validation, and the authentication routine accepts the empty strings on the web and Telnet interfaces. Network access to the management interface is sufficient; successful exploitation permits unrestricted administrative control and configuration changes.

The record

CVE
CVE-2025-63362
Published
Dec 4, 2025
Updated
Dec 8, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-620, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 8, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-620Unverified Password Change
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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