What is the CVSS score of CVE-2024-6787?

CVE-2024-6787 has a CVSS 4.0 base score of 6.0 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N. EPSS exploitation probability: 0.3%.

Is there a patch available for CVE-2024-6787?

Yes, a patch is available for CVE-2024-6787. Update the affected software to the latest version immediately.

Mxview One CVE-2024-6787

MEDIUM

Time-of-check Time-of-use (TOCTOU) Race Condition (CWE-367)

2024-09-21 psirt@moxa.com

RCE Mxview One Moxa

6.0

CVSS 4.0 · Vendor: moxa

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Vulnerability Assessment

Weakness	CWE CWE-367 ASVS 5.0 V15 - Secure Coding and Architecture TOCTOU prevention
Impact	CVSS score of 6.0 (MEDIUM). Attack characteristics: network attack vector, high complexity, low privileges required, no user interaction not required.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

Patch available 0.3% exploitation probability (EPSS)

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AnalysisAI

This vulnerability occurs when an attacker exploits a race condition between the time a file is checked and the time it is used (TOCTOU). Rated medium severity (CVSS 6.0), this vulnerability is remotely exploitable.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-367. This vulnerability occurs when an attacker exploits a race condition between the time a file is checked and the time it is used (TOCTOU). By exploiting this race condition, an attacker can write arbitrary files to the system. This could allow the attacker to execute malicious code and potentially cause file losses. Affected products include: Moxa Mxview One.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (moxa) PRIMARY 6.0 MEDIUM

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

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

CVSS VectorVendor: moxa

Attack Vector

Network

Attack Complexity

High

Attack Requirements

Present

Privileges Required

Low

User Interaction

None

Vulnerable system: Confidentiality

None

Vulnerable system: Integrity

High

Vulnerable system: Availability

None

Subsequent system: Confidentiality

None

Subsequent system: Integrity

None

Subsequent system: Availability

None

DescriptionCVE.org

This vulnerability occurs when an attacker exploits a race condition between the time a file is checked and the time it is used (TOCTOU). By exploiting this race condition, an attacker can write arbitrary files to the system. This could allow the attacker to execute malicious code and potentially cause file losses.

Threat Intelligence Overview

EPSS Score

0.3%

Top 83% 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 MEDIUM

CISA KEV No

Public POC No

EPSS 0.3%

Patch available Yes

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

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.