What is the CVSS score of CVE-2024-38645?

CVE-2024-38645 has a CVSS 4.0 base score of 9.4 (Critical). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H. EPSS exploitation probability: 0.6%.

Notes Station 3 CVE-2024-38645

CRITICAL

Server-Side Request Forgery (SSRF) (CWE-918)

2024-11-22 security@qnapsecurity.com.tw

SSRF Qnap Notes Station 3

9.4

CVSS 4.0 · Vendor: qnapsecurity

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Vulnerability Assessment

Weakness	CWE CWE-918 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V4 - API and Web Service URL allowlisting, SSRF prevention MITRE ATT&CK 2 techniques across 2 tactics: Initial Access, Credential Access 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 9.4 (CRITICAL). Attack characteristics: network attack vector, low complexity, low privileges required, user interaction required.
Exploit ScenarioDerived	A remote attacker could make the server perform requests to unintended internal or external resources by sending crafted requests to the affected application.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.

No patch listed yet 0.6% exploitation probability (EPSS)

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AnalysisAI

A server-side request forgery (SSRF) vulnerability has been reported to affect Notes Station 3. Rated critical severity (CVSS 9.4), 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. Validate and allowlist destination URLs, block requests to internal networks, use network segmentation.

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 as Server-Side Request Forgery (SSRF) (CWE-918), which allows attackers to make the server perform requests to unintended internal or external resources. A server-side request forgery (SSRF) vulnerability has been reported to affect Notes Station 3. If exploited, the vulnerability could allow remote authenticated attackers to read application data. We have already fixed the vulnerability in the following version: Notes Station 3 3.9.7 and later Affected products include: Qnap Notes Station 3.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (qnapsecurity) PRIMARY 9.4 CRITICAL

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

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

CVSS VectorVendor: qnapsecurity

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

Low

User Interaction

Passive

Vulnerable system: Confidentiality

High

Vulnerable system: Integrity

High

Vulnerable system: Availability

High

Subsequent system: Confidentiality

High

Subsequent system: Integrity

High

Subsequent system: Availability

High

DescriptionCVE.org

A server-side request forgery (SSRF) vulnerability has been reported to affect Notes Station 3. If exploited, the vulnerability could allow remote authenticated attackers to read application data.

We have already fixed the vulnerability in the following version: Notes Station 3 3.9.7 and later

Threat Intelligence Overview

EPSS Score

0.6%

Top 54% 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 CRITICAL

CISA KEV No

Public POC No

EPSS 0.6%

Patch available No

Active threat No

Deciding rule

CRITICAL severity

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.