What is the CVSS score of CVE-2023-3634?

CVE-2023-3634 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Mse6 C2M 5000 Fb36 D M Rg Bar M12L4 Agd CVE-2023-3634

EUVD-2023-44280 HIGH

Inclusion of Undocumented Features or Chicken Bits (CWE-1242)

2026-04-16 CERTVDE

GHSA-gp63-xp8x-53g4

Information Disclosure Mse6 C2M 5000 Fb36 D M Rg Bar M12L4 Agd Mse6 C2M 5000 Fb36 D M Rg Bar M12L5 Agd Mse6 C2M 5000 Fb43 D M Rg Bar M12L4 Mq1 Agd Mse6 C2M 5000 Fb43 D M Rg Bar M12L5 Mq1 Agd Mse6 C2M 5000 Fb44 D M Rg Bar Ami Agd Mse6 C2M 5000 Fb44 D Rg Bar Ami Agd Mse6 D2M 5000 Cbus S Rg Bar Vcb Agd Mse6 E2M 5000 Fb13 Agd Mse6 E2M 5000 Fb36 Agd Mse6 E2M 5000 Fb37 Agd Mse6 E2M 5000 Fb43 Agd Mse6 E2M 5000 Fb44 Agd Festo

8.8

CVSS 3.1 · Vendor: CERTVDE

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Vulnerability Assessment

Weakness	CWE CWE-1242 OWASP Top 10:2025 A04:2025 - Cryptographic Failures ASVS 5.0 V11 - Cryptography Cryptographic implementation review
Impact	CVSS score of 8.8 (HIGH). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. EPSS exploitation probability: 0.29%.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.

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

No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAI

In products of the MSE6 product-family by Festo a remote authenticated, low privileged attacker could use functions of undocumented test mode which could lead to a complete loss of confidentiality,. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected VersionsENISA

MSE6-E2M-5000-FB36-AGD *

MSE6-C2M-5000-FB43-D-M-RG-BAR-M12L5-MQ1-AGD *

MSE6-C2M-5000-FB44-D-RG-BAR-AMI-AGD *

MSE6-C2M-5000-FB36-D-M-RG-BAR-M12L4-AGD *

MSE6-E2M-5000-FB13-AGD *

MSE6-C2M-5000-FB44-D-M-RG-BAR-AMI-AGD *

MSE6-E2M-5000-FB44-AGD *

MSE6-E2M-5000-FB43-AGD *

MSE6-D2M-5000-CBUS-S-RG-BAR-VCB-AGD *

MSE6-C2M-5000-FB36-D-M-RG-BAR-M12L5-AGD *

MSE6-E2M-5000-FB37-AGD *

MSE6-C2M-5000-FB43-D-M-RG-BAR-M12L4-MQ1-AGD *

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-1242. In products of the MSE6 product-family by Festo a remote authenticated, low privileged attacker could use functions of undocumented test mode which could lead to a complete loss of confidentiality, integrity and availability. Affected products include: Festo Mse6-C2M-5000-Fb36-D-M-Rg-Bar-M12L4-Agd, Festo Mse6-C2M-5000-Fb36-D-M-Rg-Bar-M12L5-Agd, Festo Mse6-C2M-5000-Fb43-D-M-Rg-Bar-M12L4-Mq1-Agd, Festo Mse6-C2M-5000-Fb43-D-M-Rg-Bar-M12L5-Mq1-Agd, Festo Mse6-C2M-5000-Fb44-D-M-Rg-Bar-Ami-Agd.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (CERTVDE) PRIMARY 8.8 HIGH

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

Primary rating from Vendor (CERTVDE) · only source for this CVE.

CVSS VectorVendor: CERTVDE

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionCVE.org

Threat Intelligence Overview

EPSS Score

0.3%

Top 48% exploitable

Social Media

Sightings

Data Quality

6 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS

Vulnrichment CIRCL

VulDB

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 No

EPSS 0.3%

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

Scheduled

Exploitation

None

System Exposure· derived

Open

Automatable

Human Impact· derived

Medium

Technical Impact

Total

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +44

PoC: 0

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.