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Global Management System CVE-2018-9866

CRITICAL
Command Injection (CWE-77)
2018-08-03 PSIRT@sonicwall.com
9.8
CVSS 3.1 · Vendor: sonicwall
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Command injection prevention
MITRE ATT&CK

1 technique across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

A remote attacker could inject arbitrary commands into system command execution 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 + public POC available.
No patch listed yet 4.5% exploitation probability (EPSS)

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AnalysisAI

A vulnerability in lack of validation of user-supplied parameters pass to XML-RPC calls on SonicWall Global Management System (GMS) virtual appliance's, allow remote user to execute arbitrary code. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use parameterized APIs, avoid shell execution, validate input with strict allowlists.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

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 Command Injection (CWE-77), which allows attackers to inject arbitrary commands into system command execution. A vulnerability in lack of validation of user-supplied parameters pass to XML-RPC calls on SonicWall Global Management System (GMS) virtual appliance's, allow remote user to execute arbitrary code. This vulnerability affected GMS version 8.1 and earlier. Affected products include: Sonicwall Global Management System. Version information: version 8.1.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (sonicwall) PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

CVSS VectorVendor: sonicwall

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

A vulnerability in lack of validation of user-supplied parameters pass to XML-RPC calls on SonicWall Global Management System (GMS) virtual appliance's, allow remote user to execute arbitrary code. This vulnerability affected GMS version 8.1 and earlier.

Threat Intelligence Overview

EPSS Score
4.5%
Top 10% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS GitHub Metasploit

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 4.5%
Patch available No
Active threat No
Deciding rule
CRITICAL severity + public POC 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
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

74
Low Medium High Critical
KEV: 0
EPSS: +5
CVSS: +49
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

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:global_management_system:*:*:*:*:*:*:*:*
CVE-2014-8420 CRITICAL POC
9.0 Nov 25

The ViewPoint web application in Dell SonicWALL Global Management System (GMS) before 7.2 SP2, SonicWALL Analyzer before

CVE-2018-3639 MEDIUM POC
5.5 May 22

Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addres

CVE-2023-34132 CRITICAL POC
9.8 Jul 13

Use of password hash instead of password for authentication vulnerability in SonicWall GMS and Analytics allows Pass-the

CVE-2023-34124 CRITICAL POC
9.8 Jul 13

The authentication mechanism in SonicWall GMS and Analytics Web Services had insufficient checks, allowing authenticatio

CVE-2023-34127 HIGH POC
8.8 Jul 13

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in SonicWall GM

CVE-2023-34133 HIGH POC
7.5 Jul 13

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in SonicWall GMS and

CVE-2016-2397 CRITICAL
9.8 Feb 17

The cliserver implementation in Dell SonicWALL GMS, Analyzer, and UMA EM5000 7.2, 8.0, and 8.1 before Hotfix 168056 allo

CVE-2016-2396 CRITICAL
9.9 Feb 17

The GMS ViewPoint (GMSVP) web application in Dell SonicWALL GMS, Analyzer, and UMA EM5000 7.2, 8.0, and 8.1 before Hotfi

CVE-2023-34137 CRITICAL
9.8 Jul 13

SonicWall GMS and Analytics CAS Web Services application use static values for authentication without proper checks lead

CVE-2023-34136 CRITICAL
9.8 Jul 13

Vulnerability in SonicWall GMS and Analytics allows unauthenticated attacker to upload files to a restricted location no

CVE-2023-34130 CRITICAL
9.8 Jul 13

SonicWall GMS and Analytics use outdated Tiny Encryption Algorithm (TEA) with a hardcoded key to encrypt sensitive data.

CVE-2023-34128 CRITICAL
9.8 Jul 13

Tomcat application credentials are hardcoded in SonicWall GMS and Analytics configuration file.3.2-SP1 and earlier versi

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