CVE-2026-111594 InterSystems CVE debrief

Who should care

Defenders responsible for InterSystems IRIS for Health deployments, particularly those in healthcare and medical industries, should assess exposure and prioritize remediation. Operators, platform administrators, vulnerability management teams, and security teams should review the vulnerability and take necessary actions to prevent data exposure and unauthorized access.

Why it matters

CVE-2026-111594 requires verification of TLS/SSL configurations for InterSystems IRIS for Health deployments to prevent data exposure and unauthorized access.

• Verify TLS/SSL configurations to prevent data exposure
• Review authentication mechanisms to prevent unauthorized access
• Ensure data transmission security through proper encryption

Technical summary

CVE-2026-111594 affects InterSystems IRIS for Health, which has TLS/SSL encryption turned off by default. This may allow attackers to view transmitted data and use it to log into the device. The vulnerability requires verification of TLS/SSL configurations for InterSystems IRIS for Health deployments to prevent data exposure and unauthorized access. Defenders should prioritize verifying TLS/SSL configurations for InterSystems IRIS for Health deployments, reviewing authentication mechanisms, and ensuring data transmission security.

Defensive priority

Defenders should prioritize verifying TLS/SSL configurations for InterSystems IRIS for Health deployments, reviewing authentication mechanisms, and ensuring data transmission security.

Recommended defensive actions

• Verify TLS/SSL configurations for InterSystems IRIS for Health deployments
• Review authentication mechanisms to prevent unauthorized access
• Ensure data transmission security through proper encryption
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record indicates that InterSystems IRIS for Health has TLS/SSL encryption turned off by default. Official sources, including the CVE Program and NVD, provide details on this vulnerability. The CVE Program record with source-provided CVE metadata and the official NIST NVD detail page provide source-specific vulnerability assessment. Additional source references are also available.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.