External risk intelligence

SQL Injection and Cross-Tenant Data Exposure in HCL BigFix Service Management

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2026-67100

HCL BigFix Service Management is typically deployed as a centralized, web-based enterprise service management platform. Such platforms are frequently exposed as internet-facing portals or internal web services to support distributed users, making the web-based interface and its underlying APIs common targets for network-based access.

SQL Injection

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This advisory concerns vulnerabilities in HCL BigFix Service Management that could allow an attacker to access sensitive system details and unauthorized profile data across different organizations. The main concern is confirming relevance and exposure.

Attackers can steal system and user data.
It impacts centralized, web-based enterprise management.
Verify if our systems are affected by these risks.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by targeting the HCL BigFix Service Management platform. After gaining initial access, they could manipulate requests to inject database commands and access sensitive system information, and then further manipulate request values to read or modify personal data from other organizations.

Network access required.
Inject malicious database commands.
Unauthorized access to sensitive data.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability in HCL BigFix Service Management could allow an authenticated attacker to access sensitive system information and manipulate requests to view or modify personal data and PII across different organizations. These issues could be exploited when the system is accessed via its network interface.

System details and PII.
Manipulating requests via network access.
Unauthorized cross-tenant data access.

Operational Fix

Recommended remediation, mitigation, and detection steps

This critical vulnerability in HCL BigFix Service Management impacts the confidentiality and integrity of sensitive system details and PII. Determining ownership and the first practical steps requires identifying all instances of the affected technology, assessing their exposure and criticality, and locating the accountable system owner. Planning remediation should then prioritize high-risk deployments.

Own by: Platform and security teams.
Verify first: System exposure and criticality.
Action: Plan phased remediation.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is HCL BigFix Service Management?

HCL BigFix Service Management is an enterprise-level platform used by organizations to centralize IT service delivery and manage internal workflows. It acts as a hub for handling system assets, request tracking, and organizational data, typically accessed through a web-based interface that connects users to the underlying database and service infrastructure.

What are the vulnerabilities in CVE-2026-67100?

This CVE involves two primary weaknesses: SQL Injection (CWE-89) and Cross-Tenant Data Exposure (CWE-200). SQL Injection allows an attacker to insert malicious commands into the platform's database queries. Cross-Tenant Data Exposure means the system fails to properly isolate data, potentially allowing one organization to access private profiles or personally identifiable information belonging to another organization using the same platform.

How does an attacker trigger these flaws?

An attacker triggers these vulnerabilities by sending manipulated requests through the platform's network interface. It is important to note that these flaws are not triggered by benign system usage or legitimate administrative tasks. The risk arises specifically when malicious input is crafted to exploit the database or bypass organizational data boundaries.

Is my organization at risk from CVE-2026-67100?

Risk depends on how your instance is deployed. According to Halo Surface Signal, this software is often set up as a centralized web portal or internal service. If your HCL BigFix Service Management instance is accessible via the network, especially if it faces the internet, it is a potential target for the network-based exploitation described in this advisory.

What should I do first to address this vulnerability?

Begin by identifying every instance of HCL BigFix Service Management running in your environment and confirm who owns each deployment. Assess the exposure and criticality of those specific systems, prioritizing those that are internet-facing. Once you have an inventory, work with the system owners to plan a phased remediation strategy to protect sensitive organizational data.

References

support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0133782

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.