Nordvpn
CVE-2018-3952
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization OS command sanitization, avoid shell exec
MITRE ATT&CK
2 techniques 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 8.8 (HIGH). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | A local attacker with access to the system could execute arbitrary operating system commands on the host. |
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Alert meAnalysisAI
An exploitable code execution vulnerability exists in the connect functionality of NordVPN 6.14.28.0. Rated high severity (CVSS 8.8), this vulnerability is 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. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.
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 OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. An exploitable code execution vulnerability exists in the connect functionality of NordVPN 6.14.28.0. A specially crafted configuration file can cause a privilege escalation, resulting in the execution of arbitrary commands with system privileges. Affected products include: Nordvpn.
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Severity by source
AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
An exploitable code execution vulnerability exists in the connect functionality of NordVPN 6.14.28.0. A specially crafted configuration file can cause a privilege escalation, resulting in the execution of arbitrary commands with system privileges.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
OS command injection occurs when an application passes unsanitized user input directly into system shell commands.
Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
Affected Products (CPE)NVD
Nord VPN 6.14.31 contains a denial of service vulnerability that allows unauthenticated attackers to crash the applicati
NordVPN 6.19.6 contains a denial of service vulnerability that allows local attackers to crash the application by submit
NordVPN 6.12.7.0 for Windows suffers from a SYSTEM privilege escalation vulnerability through the "nordvpn-service" serv
NordVPN 3.3.10 for macOS suffers from a root privilege escalation vulnerability. Rated high severity (CVSS 8.8), this vu
Incorrect authorization in the NordVPN for Windows client before version 8.12 lets a low-privileged local user impersona
GitHub PoC
Exploit-DB