What is the CVSS score of CVE-2024-50389?

CVE-2024-50389 has a CVSS 4.0 base score of 9.5 (Critical). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H. EPSS exploitation probability: 0.8%.

Qurouter CVE-2024-50389

CRITICAL

SQL Injection (CWE-89)

2024-12-06 security@qnapsecurity.com.tw

SQLi Qnap Qurouter

9.5

CVSS 4.0 · Vendor: qnapsecurity

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Vulnerability Assessment

Weakness	CWE CWE-89 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Parameterized queries, prepared statements MITRE ATT&CK 2 techniques across 2 tactics: Initial Access, Persistence 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 9.5 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived	A remote attacker could execute arbitrary SQL commands against the database by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

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

No patch listed yet 0.8% exploitation probability (EPSS)

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AnalysisAI

A SQL injection vulnerability has been reported to affect QuRouter. Rated critical severity (CVSS 9.5), 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. Use parameterized queries/prepared statements. Never concatenate user input into SQL. Apply least-privilege database permissions.

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 SQL Injection (CWE-89), which allows attackers to execute arbitrary SQL commands against the database. A SQL injection vulnerability has been reported to affect QuRouter. If exploited, the vulnerability could allow remote attackers to inject malicious code. We have already fixed the vulnerability in the following version: QuRouter 2.4.5.032 and later Affected products include: Qnap Qurouter.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (qnapsecurity) PRIMARY 9.5 CRITICAL

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/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

Present

Privileges Required

None

User Interaction

None

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 SQL injection vulnerability has been reported to affect QuRouter. If exploited, the vulnerability could allow remote attackers to inject malicious code.

We have already fixed the vulnerability in the following version: QuRouter 2.4.5.032 and later

Threat Intelligence Overview

EPSS Score

0.8%

Top 47% 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 0.8%

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.

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: +1

CVSS: +48

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

SQL Injection HIGH

SQL injection exploits the way applications construct database queries by mixing user input directly into SQL statements.

Affected Products (CPE)CVE.org

cpe:2.3:o:qnap:qurouter:2.4.0.190:build_20240522:*:*:*:*:*:*

cpe:2.3:o:qnap:qurouter:2.4.1.172:build_20240606:*:*:*:*:*:*

cpe:2.3:o:qnap:qurouter:2.4.1.634:build_20240710:*:*:*:*:*:*

cpe:2.3:o:qnap:qurouter:2.4.2.317:build_20240903:*:*:*:*:*:*

cpe:2.3:o:qnap:qurouter:2.4.2.538:build_20240923:*:*:*:*:*:*

cpe:2.3:o:qnap:qurouter:2.4.3.103:build_20241011:*:*:*:*:*:*

cpe:2.3:o:qnap:qurouter:2.4.4.106:build_20241017:*:*:*:*:*:*

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References

Advisories & patches

ADVISORY https://www.qnap.com/en/security-advisory/qsa-24-45

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GitHub PoC

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