Summary

Starting May 21st, 2026, the CMS Hybrid Cloud Team will begin the Q2 2026 CMS Enterprise Security Campaign.

Any findings will be tracked via Jira tickets and assigned to the respective teams for remediation. The Q2 CMS Enterprise Security Campaign is targeting 11 Critical Common Vulnerabilities and Exposures (CVEs) that pose a high risk to CMS systems. All these findings have an Exploit Prediction Scoring System (EPSS) value greater than 70%.

Benefits

Resolving findings in customers' Jira tickets ensures CMS systems remain secure. Participating in proactive, routine security activities, such as this CMS Enterprise Security Campaign, reduces the risk of unauthorized and/or malicious activity.

The CMS Enterprise Security Campaign will target and identify the following vulnerabilities and CVEs:

Targeted Vulnerabilities and Common Vulnerabilities and Exposures (CVEs)

Note: Operating System (OS)-level findings are remediated by the CMS Hybrid Cloud Team for customers who receive regular CMS Gold Image patching services. Please note that CMS customers are responsible for patching any software installed on top of the provided CMS Gold Image.

Targeted Security Hub Controls

Expected Actions

• CMS customers with findings will receive a Jira ticket.
  • If you would like to obtain an exemption, you will need to complete an attestation.
• CMS customers should resolve all received Jira tickets as soon as possible.
  • For help, please refer to the "Questions or Concerns" section below for instructions on how to submit a Hybrid Cloud Support ticket.
• Failure to resolve findings can lead to compromised systems that result in greater risks for unauthorized and/or malicious activity.
• Unresolved system flaws will result in Plan of Action and Milestones (POA&Ms) being issued against the Federal Information Security Modernization Act (FISMA) boundary.

Timeline

• May 21, 2026: CMS customers with findings will receive Jira tickets for the findings noted in the "Benefits" section above.

Additional Information

• Learn about Security Hub Campaigns
• Exemption Policy Guide

Questions or Concerns

We look forward to helping you and your team. Reach out to your IUSG Hosting Coordinator with any questions. For further help, please fill out a Hybrid Cloud Support ticket specifying Service as "Security Hub" and Request as "Security Hub Findings".