What’s Vulnerable › Vulnerabilities

CVE-2023-31222: Medtronic Paceart MSMQ Deserialization of Untrusted Data

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 28.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-06-29 · updated 2026-06-17
• Weakness: CWE-502

Description

Deserialization of untrusted data in Microsoft Messaging Queuing Service in Medtronic's Paceart Optima versions 1.11 and earlier on Windows allows an unauthorized user to impact a healthcare delivery organization’s Paceart Optima system cardiac device causing data to be deleted, stolen, or modified, or the Paceart Optima system being used for further network penetration via network connectivity.

Affected products

• Medtronic Paceart Optima: before 1.12 — fixed in 1.12

How to fix

Upgrade to a fixed version: Medtronic Paceart Optima 1.12. Check the vendor advisory for mitigations.

References

• https://global.medtronic.com/xg-en/product-security/security-bulletins/paceart-optima-system.html
• https://global.medtronic.com/xg-en/product-security/security-bulletins/paceart-optima-system.html

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