External risk intelligence

IBM Common Licensing Agent Cross-Site Request Forgery Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 10.0)

CVE-2025-15399

IBM Common Licensing Agent is typically used for internal license management and enforcement. While it may be network-reachable in some enterprise environments, it is not commonly deployed as a public-facing internet service, though the nature of the application as a licensing agent makes occasional exposure to internal or bridged networks plausible.

Cross-site Request Forgery

Halo Surface Signal: 3 out of 5 — possibly public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This advisory details a critical vulnerability in IBM Common Licensing Agent software. The issue, a cross-site request forgery, could permit an attacker to trick a trusted user into performing unauthorized actions. The main concern is confirming the relevance and exposure of this licensing technology within our environment.

Forgery allows unauthorized actions through trusted users.
This licensing software needs its relevance confirmed.
Focus on confirming exposure and potential impact.

Attack Path

How an attacker could exploit the issue

An attacker can exploit this vulnerability by tricking an authenticated user into visiting a malicious webpage or opening a malicious email. This action causes the user's browser to send an unauthorized request to the IBM Common Licensing Agent, which the agent will process as legitimate due to insufficient validation of the request's origin. This could allow an attacker to execute malicious actions on behalf of the trusted user.

Attacker lures user to malicious site.
User's browser sends unauthorized request.
Unauthorized actions performed by attacker.

Live Threat

Current exploitation, exposure, and threat context

Cross-site request forgery in IBM Common Licensing Agent could allow an attacker to trick a trusted user into performing unintended actions. This could potentially lead to the unauthorized execution of commands or modifications to system configurations, depending on the user's privileges and the application's design.

System configuration and user actions.
User performs malicious action via trusted interface.
Unauthorized actions executed on the system.

Operational Fix

Recommended remediation, mitigation, and detection steps

System owners and potentially the vendor management team are likely responsible for addressing this vulnerability in IBM Common Licensing Agent. The initial practical step is to identify all deployments of the affected software, determine their network exposure and criticality, and then assign ownership for remediation planning.

Identify affected deployments and owners.
Verify network reachability and business impact.
Plan remediation based on assessed risk.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

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Frequently asked questions

What is the IBM Common Licensing Agent?

It is a software component designed to manage and enforce software license compliance across an organization. It typically operates as a background service or agent on networked systems, ensuring that applications verify their licensing status with a central server. Because it handles authorization for software usage, it sits within the infrastructure to maintain controlled access to licensed tools.

How does this CSRF vulnerability work in CVE-2025-15399?

This vulnerability, classified as CWE-352, occurs when the software fails to verify if a request was intentionally initiated by an authorized user. An attacker leverages the trust the agent places in a user's browser. By tricking a logged-in user into visiting a malicious site, the attacker forces that browser to send unauthorized commands to the licensing agent, which then processes them as if they were legitimate requests from the user.

When does this vulnerability pose a risk?

The risk manifests only when a user who has active, authenticated access to the IBM Common Licensing Agent is lured to a malicious webpage or email link. This flaw is not triggered by direct, automated network attacks on the agent itself, nor by the agent's standard background communication with licensing servers. The agent must process a request originating from a browser session that the system currently trusts.

Is my IBM Common Licensing Agent at risk?

Halo Surface Signal indicates that while this software is typically used for internal license management, it may be reachable in some environments. While it is rarely designed as a public-facing internet service, you should consider it potentially reachable if it exists on bridged or internal networks where users browse the web. The primary concern is whether the system hosting the agent is accessible to browser-based traffic.

What should I do to address this CVE?

Start by identifying every system in your environment where these specific versions of IBM Common Licensing Agent or ART are installed. Once identified, map out which instances are accessible via a network path where users operate web browsers. Prioritize these reachable systems for review, verify who owns each deployment, and coordinate with them to evaluate the business impact and plan for necessary software updates.

References

www.ibm.com/support/pages/node/7286490

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.