What is the CVSS score of CVE-2024-33687?

CVE-2024-33687 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:H/A:N. EPSS exploitation probability: 0.2%.

Nx701 1600 Firmware CVE-2024-33687

HIGH

Insufficient Verification of Data Authenticity (CWE-345)

2024-06-24 vultures@jpcert.or.jp

Information Disclosure Nx701 1600 Firmware Nx701 1700 Firmware Nx701 Z700 Firmware Nx701 Z600 Firmware Nx701 1720 Firmware Nx701 1620 Firmware Nx102 1200 Firmware Nx102 1100 Firmware Nx102 1000 Firmware Nx102 1220 Firmware Nx102 1120 Firmware Nx102 1020 Firmware Nx102 9020 Firmware Nx1P2 1140Dt Firmware Nx1P2 1140Dt1 Firmware Nx1P2 1040Dt Firmware Nx1P2 1040Dt1 Firmware Nx1P2 9024Dt Firmware Nx1P2 9024Dt1 Firmware Nx1W Cif01 Firmware Nx1W Cif11 Firmware Nx1W Cif12 Firmware Nx1W Adb21 Firmware Nx1W Dab21V Firmware Nx1W Mab221 Firmware Nj501 1500 Firmware Nj501 140 Firmware Nj501 1300 Firmware Nj501 R500 Firmware Nj501 R520 Firmware Nj501 R400 Firmware Nj501 R420 Firmware Nj501 R300 Firmware Nj501 R320 Firmware Nj501 5300 Firmware Nj501 1520 Firmware Nj501 1420 Firmware Nj501 1320 Firmware Nj101 1020 Firmware Nj101 9020 Firmware Nj501 1340 Firmware Nj501 4500 Firmware Nj501 4400 Firmware Nj501 4300 Firmware Nj501 4310 Firmware Nj501 4320 Firmware Nj301 1200 Firmware Nj301 1100 Firmware Nj101 1000 Firmware Nj101 9000 Firmware Nj Pa3001 Firmware Nj Pd3001 Firmware Nj501 1400 Firmware Nj501 5300 1 Firmware Nx102 9000 Firmware Omron

7.5

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-345 OWASP Top 10:2025 A08:2025 - Software or Data Integrity Failures ASVS 5.0 V15 - Secure Coding and Architecture Data authenticity verification
Impact	CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
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 0.2% exploitation probability (EPSS)

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AnalysisAI

Insufficient verification of data authenticity issue exists in NJ Series CPU Unit all versions and NX Series CPU Unit all versions. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, 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.

Affects your stack

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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 under CWE-345. Insufficient verification of data authenticity issue exists in NJ Series CPU Unit all versions and NX Series CPU Unit all versions. If a user program in the affected product is altered, the product may not be able to detect the alteration. Affected products include: Omron Nj101-1000 Firmware, Omron Nj101-1020 Firmware, Omron Nj101-9000 Firmware, Omron Nj101-9020 Firmware, Omron Nj301-1100 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:N/I:H/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

None

Integrity

High

Availability

None

DescriptionNVD

Insufficient verification of data authenticity issue exists in NJ Series CPU Unit all versions and NX Series CPU Unit all versions. If a user program in the affected product is altered, the product may not be able to detect the alteration.

Threat Intelligence Overview

EPSS Score

0.2%

Top 91% exploitable

Data Quality

2 sources

Confidence: Low

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 No

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

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +38

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.