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

criticalknown exploitedpublic exploitCVE-2023-43208
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
NextGen Healthcare Mirth Connect contains a deserialization of untrusted data vulnerability that allows for unauthenticated remote code execution via a specially crafted request.

CSIRTS triage

vendor: NextGen Healthcareproduct: Mirth ConnectRemote code executionUnsafe deserialization
What
Mirth Connect contains a deserialization of untrusted data vulnerability that allows unauthenticated remote code execution.
Who is affected
Users of Mirth Connect are affected by this vulnerability.
Urgency
Immediate remediation is necessary due to active exploitation and critical severity.
Action
Update to the latest version of Mirth Connect to address this vulnerability.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2024-05-20
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-43208

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2023-43208coverage & exploitation statusNVD · CVE.org

Recent advisories for NextGen Healthcare Mirth

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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