What is the CVSS score of EUVD-2025-201245?

EUVD-2025-201245 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.1%.

Is there a public PoC exploit available for EUVD-2025-201245?

Yes, a public proof-of-concept exploit is available for EUVD-2025-201245. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate EUVD-2025-201245?

Within 24 hours: Identify and inventory all Waveshare RS232/485 to WiFi/ETH (B) devices in production, particularly those handling critical operations. Within 7 days: Implement network segmentation to isolate affected gateways on restricted VLANs with MAC filtering and disable Wi-Fi if Ethernet is available as an alternative. Within 30 days: Monitor vendor advisories for firmware patches and establish a testing plan for deployment; escalate to device manufacturer for patch timeline commitment.

Rs232 485 To Wifi Eth B Firmware EUVD-2025-201245

| CVE-2025-63363 HIGH

Improper Access Control (CWE-284)

2025-12-04 cve@mitre.org

Authentication Bypass Rs232 485 To Wifi Eth B Firmware Waveshare

7.5

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-284 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V8 - Authorization Access control enforcement MITRE ATT&CK 1 technique across 1 tactic: Defense Evasion The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 7.5 (HIGH).

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 15, 2026

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.

Earlier versions of this analysis (1)

v1 Mar 15, 2026 - 16:35 CVSS 7.5

RemediationAI

Monitor vendor advisories for patches. Apply mitigations such as network segmentation, access restrictions, and monitoring.

Affected VersionsENISA

n/a n/a

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Improper Access Control (CWE-284).

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

PoC Detected

Dec 16, 2025 - 20:57 vuln.today

Public exploit code

CVE Published

Dec 04, 2025 - 18:15 nvd

HIGH 7.5

Executive ViewAI

Why It Matters

Waveshare RS232/485 to WiFi/Ethernet gateways (firmware V3.1.1.0) are vulnerable to Wi-Fi de-authentication attacks that could disrupt connectivity for any organization using these devices for serial-to-network communications. Attackers can force disconnections without authentication, potentially impacting critical industrial control systems, remote monitoring, or IoT deployments that depend on these gateways.

Business Impact: High

Compensating Controls

Disable Wi-Fi functionality and use wired Ethernet connectivity only if operationally feasible. Implement strict Wi-Fi access controls (MAC filtering, hidden SSID). Deploy Wi-Fi intrusion detection to alert on de-authentication frame anomalies. Physically isolate affected devices on separate network segments with restricted access. Reduce exposure by moving critical functions away from these gateways to more secure alternatives pending patch availability.

Threat Intelligence Overview

EPSS Score

0.1%

Top 77% exploitable

Exploit

POC

Public exploit code exists

Data Quality

4 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC Yes

EPSS 0.1%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.