CVE-2025-63363: A lack of Management Frame Protection in Waveshare RS232/485 TO WIFI ETH (B) Serial to Ethernet/Wi-Fi Gateway

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HIGH 7.5REMOTEMITIGATE

CVE-2025-63363 is a high-severity flaw (CVSS 7.5) affecting rs232\/485 to wifi eth \(b\) firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A lack of Management Frame Protection in 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 execute de-authentication attacks, allowing crafted deauthentication and disassociation frames to be broadcast without authentication or encryption.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-284, CWE-300
Published	2025-12-04
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: waveshare

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-04 18:15 UTCPublished CVE record published
2026-06-17 09:53 UTCUpdated Record last modified

waveshare rs232\/485 to wifi eth \(b\) firmware MITIGATE

Affected: 3.1.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.1.1.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-63363?

rs232\/485 to wifi eth \(b\) firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-63363 being exploited?

CVE-2025-63363 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-63363 affect?

CVE-2025-63363 affects rs232\/485 to wifi eth \(b\) firmware. Severity is high (CVSS 7.5). A lack of Management Frame Protection in 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 execute de-authentication attacks, allowing craft

How urgent is CVE-2025-63363?

Priority 41/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Wi-Fi vulnerabilities

Related CVEs

CVE-2025-63364 HIGH 7.5 MITIGATE 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
CVE-2025-63362 CRITICAL 9.8 MITIGATE 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
CVE-2025-63361 MEDIUM 5.7 MITIGATE 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

References

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