External risk intelligence

Ncvav Virtual PBX Software SQL Injection Vulnerability.

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2025-6918

A SQL injection vulnerability in Virtual PBX Software allows attackers to interfere with SQL commands, potentially leading to unauthorized access or modification of sensitive data. This issue affects the software before July 9, 2025, and requires confirmation of its use and potential exposure.

4Halo Surface Signal

SQL Injection

External exposure likelihood

Halo Surface Signal score for CVE-2025-6918

The vulnerability affects Virtual PBX software. PBX systems, particularly those exposed to VoIP or SIP traffic, are commonly deployed as internet-facing gateways or communication services to facilitate remote connectivity, making the management interfaces or service endpoints frequently reachable from the public internet.

PCI scan relevance

PCI Relevance for CVE-2025-6918

Yes

CVE-2025-6918 — Halo PCI Relevance: Yes. Under typical PCI ASV external scan criteria, this issue may be flagged for scan prioritization.

This SQL injection vulnerability in Ncvav Virtual PBX Software can allow attackers to gain unauthorized access to sensitive data or execute commands. SQL injection flaws are a direct violation of PCI DSS Requirement 6.5.1, which mandates that applications must be immune to inject

Scan-prioritization guidance only—not a PCI DSS certification or ASV attestation.

Horizon Alert

Summary of the vulnerability and why it matters

This critical vulnerability, known as SQL Injection, affects Virtual PBX Software and could allow unauthorized access to sensitive data and system control if exploited. The primary concern is to confirm if this specific software is in use and assess potential exposure.

Allows database compromise through malicious input.
Critical vulnerability impacts data integrity and system access.
Verify software use; assess relevance and potential exposure.

Attack Path

How an attacker could exploit the issue

An attacker can reach the vulnerable Virtual PBX Software over the network without needing any authentication or user interaction. By sending specially crafted input, they can exploit a flaw in how the software handles SQL commands, potentially leading to unauthorized access to sensitive data, modification of information, or disruption of services.

Attacker can reach the software via network.
Specially crafted input triggers SQL injection.
Leads to data theft, alteration, or service disruption.

Live Threat

Current exploitation, exposure, and threat context

A SQL injection vulnerability in Ncvav Virtual PBX Software could allow an attacker to interfere with the intended execution of non-arbitrary SQL commands. This could potentially expose, modify, or delete sensitive system data when supported by the advisory.

Affects Virtual PBX Software data.
Via crafted SQL commands over the network.
Could lead to data exposure or modification.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

Ncvav Virtual PBX Software owners and infrastructure teams are likely responsible for addressing this SQL injection vulnerability. The first practical step is to identify all instances of the affected software, determine their reachability and criticality to business operations, and confirm the accountable owner for remediation planning.

Application owners should manage the issue.
Verify software reachability and business impact.
Plan remediation based on assessed risk.

Frequently asked questions

What is Ncvav Virtual PBX Software?

Ncvav Virtual PBX Software is a system used for managing phone calls and communications, often found in businesses. It helps route calls, manage voicemail, and other phone-related services.

What kind of weakness does CVE-2025-6918 describe?

CVE-2025-6918 describes an SQL Injection weakness. This means an attacker can insert malicious SQL commands into the software's input fields, potentially tricking the software into executing unintended database commands.

How can an attacker exploit CVE-2025-6918?

An attacker can exploit this vulnerability by sending specially crafted SQL commands over the network to the Virtual PBX Software. No authentication or user interaction is required for the exploit to be triggered.

How likely is it that this vulnerability affects my organization?

This vulnerability is considered likely to affect organizations because Virtual PBX systems are often internet-facing to handle remote communications. If your Virtual PBX Software is accessible from the internet, it may be at risk.

What should I do if I use Ncvav Virtual PBX Software?

If you use this software, the first step is to identify all instances of it within your environment. Then, assess how reachable these instances are from the internet and determine which teams are responsible for managing and fixing software issues.

References

Written by Nicholas Merritt

External-surface CVE analysis and Halo Surface Signal prioritization for Halo Threat Intelligence.