CVEvulnerability

CVE-2023-43208

9.8 CRITICAL Known exploited Published 2023-10-26 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

NextGen Healthcare Mirth Connect Deserialization of Untrusted Data Vulnerability — NextGen Healthcare Mirth Connect

NextGen Healthcare Mirth Connect contains a deserialization of untrusted data vulnerability that allows for unauthenticated remote code execution via a specially crafted request.

Added to KEV: 2024-05-20
Remediation due: 2024-06-10
Ransomware use: Known
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes: This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://github.com/nextgenhealthcare/connect/wiki/4.4.1---What%27s-New ; https://nvd.nist.gov/vuln/detail/CVE-2023-43208

Status: Analyzed
Published: 2023-10-26
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0): 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses: CWE-502, 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 configurations

• nextgen mirth connect (< 4.4.1)

Weakness · CWE (2)

CWE-502 Deserialization of Untrusted Data weakness
CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness

References