What is the CVSS score of CVE-2014-8420?

CVE-2014-8420 has a CVSS 2.0 base score of 9.0 (Critical). CVSS vector: AV:N/AC:L/Au:S/C:C/I:C/A:C. EPSS exploitation probability: 73.8%.

Is there a public PoC exploit available for CVE-2014-8420?

Yes, a public proof-of-concept exploit is available for CVE-2014-8420. Prioritise patching immediately. EPSS: 73.8%.

Global Management System CVE-2014-8420

CRITICAL

Improper Input Validation (CWE-20)

2014-11-25 cve@mitre.org

RCE Dell Sonicwall Analyzer Global Management System Uma Em5000

9.0

CVSS 2.0 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-20 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V2 - Validation and Business Logic Input validation, allowlisting
Impact	CVSS score of 9.0 (CRITICAL). Attack characteristics: network attack vector, low complexity. Public proof-of-concept exploit code is available. EPSS exploitation probability: 73.81%.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system.

Emergency Immediate action required. Why: CRITICAL + EPSS > 30%, no patch available.

No patch listed yet 73.8% exploitation probability (EPSS)

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AnalysisAI

The ViewPoint web application in Dell SonicWALL Global Management System (GMS) before 7.2 SP2, SonicWALL Analyzer before 7.2 SP2, and SonicWALL UMA before 7.2 SP2 allows remote authenticated users to. Rated critical severity (CVSS 9.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 73.8%.

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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Technical ContextAI · show details

This vulnerability is classified under CWE-20. The ViewPoint web application in Dell SonicWALL Global Management System (GMS) before 7.2 SP2, SonicWALL Analyzer before 7.2 SP2, and SonicWALL UMA before 7.2 SP2 allows remote authenticated users to execute arbitrary code via unspecified vectors. Affected products include: Sonicwall Analyzer, Sonicwall Global Management System, Sonicwall Uma Em5000. Version information: before 7.2.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.0 CRITICAL

AV:N/AC:L/Au:S/C:C/I:C/A:C

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Confidentiality

Integrity

Availability

DescriptionCVE.org

Threat Intelligence Overview

Threat Score

5.5/10

Composite threat intelligence

EPSS Score

73.8%

Top 1% exploitable

Exploit

POC

Public exploit code exists

Data Quality

4 sources

Confidence: Medium

NVD

CVE.org

EPSS POC (1)

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 Yes

EPSS 73.8%

Patch available No

Active threat Yes

Deciding rule

CRITICAL + EPSS > 30%, no patch available

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

Out-of-Cycle

Exploitation· derived

Active

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

High

Priority Score

154

Low Medium High Critical

KEV: 0

EPSS: +74

CVSS: +45

PoC: +20

Weaponized: +15

Threat intel: 0

Gov advisory: 0

Attack Technique

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)CVE.org

cpe:2.3:a:sonicwall:analyzer:7.2:sp1:*:*:*:*:*:*

cpe:2.3:a:sonicwall:global_management_system:7.2:sp1:*:*:*:*:*:*

cpe:2.3:h:sonicwall:uma_em5000:-:*:*:*:*:*:*:*

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References

Advisories & patches

ADVISORY https://support.software.dell.com/product-notification/136814 REF http://www.securityfocus.com/bid/71241 REF http://www.zerodayinitiative.com/advisories/ZDI-14-385/ REF https://exchange.xforce.ibmcloud.com/vulnerabilities/98911

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