What’s Vulnerable › Vulnerabilities

CVE-2023-43208: NextGen Healthcare Mirth Connect Deserialization of Untrusted Data Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2024-05-20
• EPSS: 85.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-10-26 · updated 2026-06-17
• Weakness: CWE-78

Description

NextGen Healthcare Mirth Connect before version 4.4.1 is vulnerable to unauthenticated remote code execution. Note that this vulnerability is caused by the incomplete patch of CVE-2023-37679.

Affected products

• Nextgen Mirth Connect: before 4.4.1 — fixed in 4.4.1

How to fix

Upgrade to a fixed version: Nextgen Mirth Connect 4.4.1. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/176920/Mirth-Connect-4.4.0-Remote-Command-Execution.html
• https://www.horizon3.ai/nextgen-mirth-connect-remote-code-execution-vulnerability-cve-2023-43208/
• http://packetstormsecurity.com/files/176920/Mirth-Connect-4.4.0-Remote-Command-Execution.html
• https://www.horizon3.ai/nextgen-mirth-connect-remote-code-execution-vulnerability-cve-2023-43208/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-43208

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