Critical Vulnerability in PayRange API Disclosed

Critical Vulnerability in PayRange API Disclosed 🚨

A significant vulnerability has been identified in the PayRange API, which could allow both authenticated and unauthenticated attackers to exploit sensitive information. This vulnerability affects all versions of the PayRange API and poses a serious risk to critical infrastructure sectors, particularly in the United States and Canada.

Details of the Vulnerability

The vulnerability, known as CVE-2026-18965, is categorized under CWE-862 Missing Authorization. It allows unauthorized access to management endpoints, making detailed information about every device on the PayRange network publicly accessible, regardless of account status.

Impact and Recommendations

CISA has reported that there has been no known public exploitation of this vulnerability yet. However, users are strongly advised to take defensive measures to minimize the risk of exploitation. Here are some recommended actions:

• Minimize network exposure for all control system devices.
• Ensure devices are not accessible from the internet.
• Locate control system networks behind firewalls and isolate them from business networks.
• Use secure methods for remote access, such as Virtual Private Networks (VPNs), while keeping them updated to the latest versions.

Conclusion

Organizations are encouraged to conduct proper impact analysis and risk assessments before implementing defensive measures. For more detailed mitigation guidance, visit the CISA ICS webpage for the technical information paper, ICS-TIP-12-146-01B.

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