CVE-2025-63363

Wireless service interruption via unprotected management frames

Published Dec 4, 2025 · Updated Dec 5, 2025

Missing management frame protection in Waveshare RS232/485 TO WIFI ETH (B) firmware 3.1.1.0 allows physically proximate attackers to disrupt Wi-Fi. The gateway accepts forged, unauthenticated IEEE 802.11 deauthentication and disassociation frames because it does not implement 802.11w protection. An attacker within wireless range can repeatedly inject the frames to keep clients disconnected and interrupt serial-to-IP communications.

CVSS severity7.5
High
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing management frame protection in Waveshare RS232/485 TO WIFI ETH (B) firmware 3.1.1.0 allows physically proximate attackers to disrupt Wi-Fi. The gateway accepts forged, unauthenticated IEEE 802.11 deauthentication and disassociation frames because it does not implement 802.11w protection. An attacker within wireless range can repeatedly inject the frames to keep clients disconnected and interrupt serial-to-IP communications.

The record

CVE
CVE-2025-63363
Published
Dec 4, 2025
Updated
Dec 5, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-300, CWE-284, T1499
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 5, 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 vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5OTSecVerseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-300Channel Accessible by Non-Endpoint
CWE-284Improper Access Control
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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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