What is the CVSS score of EUVD-2025-20828?

EUVD-2025-20828 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:H/I:N/A:N. EPSS exploitation probability: 0.2%.

Is there a public PoC exploit available for EUVD-2025-20828?

Yes, a public proof-of-concept exploit is available for EUVD-2025-20828. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate EUVD-2025-20828?

Within 7 days: Identify all affected systems running Tenda CP3 Pro Firmware and apply vendor patches promptly. Monitor vendor channels for patch availability.

Cp3 Pro Firmware EUVD-2025-20828

| CVE-2025-52364 HIGH

Use of Weak Credentials (CWE-1391)

2025-07-09 cve@mitre.org

Information Disclosure Tenda Cp3 Pro Firmware

7.5

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-1391 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V6 - Authentication Strong credential management
Impact	CVSS 7.5. EPSS 0.2%. Public PoC/exploit available. No patch confirmed.
Exploit ScenarioDerived	An attacker could exploit this vulnerability in Tenda CP3 Pro Firmware to compromise the security of affected deployments, potentially impacting confidentiality, integrity, or availability.

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

No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 16, 2026

A security vulnerability in Tenda CP3 Pro Firmware (CVSS 7.5) that allows remote attackers. Risk factors: public PoC available.

Earlier versions of this analysis (1)

v1 Mar 16, 2026 - 06:20 CVSS 7.5

RemediationAI

Monitor vendor channels for patch availability.

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

Vulnerability type not specified by vendor. CVSS 7.5 indicates high severity. Affects Tenda CP3 Pro Firmware.

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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:H/I:N/A:N

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

High

Integrity

None

Availability

None

Lifecycle Timeline

PoC Detected

Aug 07, 2025 - 18:02 vuln.today

Public exploit code

CVE Published

Jul 09, 2025 - 15:15 nvd

HIGH 7.5

DescriptionCVE.org

Insecure Permissions vulnerability in Tenda CP3 Pro Firmware V22.5.4.93 allows the telnet service (telnetd) by default at boot via the initialization script /etc/init.d/eth.sh. This allows remote attackers to connect to the device s shell over the network, potentially without authentication if default or weak credentials are present

Executive ViewAI

Why It Matters

Organizations using Tenda CP3 Pro Firmware face notable risk from CVE-2025-52364 rated CVSS 7.5. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available, increasing the risk of exploitation. Organizations should apply vendor updates when available and consider compensating controls in the interim.

Business Impact: High

Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.

Threat Intelligence Overview

EPSS Score

0.2%

Top 63% 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 0.2%

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.

SSVC AssessmentENISA

SSVC Decision· derived

Out-of-Cycle

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +38

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.