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On October 21, critical security issues were identified for PHP Hypertext Preprocessor (PHP), a server-side scripting language. These flaws create a pathway for unauthenticated attackers to infiltrate and run their own code before the system can protect itself, creating a serious risk for anything that relies on PHP. Patches have been released to address this issue and are currently being deployed.

We strongly urge all suppliers to immediately review their use of PHP, apply the necessary updates and ensure that any PHP components exposed to the internet are fully secured or mitigated. Report any cybersecurity concerns to the Supplier Cyber Incident team.

This is an evolving situation, and swift action is essential to protect against potential threats.

RTX seeks to develop strategic relationships with suppliers who share our values and our commitment to delivering solutions that define the future of aerospace and defense.

Supplier Cybersecurity

RTX plays a critical role in protecting defense and space-related information from cyberattacks. Companies are increasingly being targeted for their sensitive intellectual capital, much of which contains Controlled Unclassified Information, Covered Defense Information, or both.

Small Business

Small business

Our small suppliers are an integral part of the global RTX team. They deliver innovative, cost-effective solutions that meet our high standards of quality and performance and enable us to solve our customers’ most pressing challenges.

RTX supplier resources

We set clear expectations for each of our suppliers. As trusted business partners, our suppliers are critical to our ability to continue delivering innovative solutions that exceed expectations for business practices, sustainability and operational excellence.

Resources for potential suppliers

Business supplier resources

Resources for suppliers of our businesses: Collins Aerospace, Pratt & Whitney and Raytheon.

Supplier announcements

Learn more about our latest supplier announcements, including regulatory and compliance updates.