No exploitation reportedFix available

CVE-2023-31222

Q: Is CVE-2023-31222 actively exploited?

Active exploitation of CVE-2023-31222 has not been confirmed. Its EPSS score was 28.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2023-31222?

CVE-2023-31222 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2023-06-29
Fixed in1.12
WeaknessCWE-502

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2023-06-2916:15CVE publishedNVD
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-31222?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-31222?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Medtronic paceart optima

Branch	Affected	Fixed in	Source
1.12	< 1.12	1.12	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSMA-23-180-01 CISA1 known affected
Medtronic Paceart Optima System
Paceart Optima: <= 1.11

Full record on NVD

Fix

Update Medtronic paceart optima to 1.12
Vendor fix CISA ICSMA-23-180-01 · 1 productMedtronic recommends updating the Paceart Optima system to v1.12. Contact Medtronic to schedule the update. (mailto:dl.paceartupdate@medtronic.com)
Mitigation from the vendor CISA ICSMA-23-180-01 · 1 productMedtronic has provided some immediate mitigations that users can apply to mitigate the risk. If running a combined Application and Integration Server, contact Medtronic Paceart Optima System technical support for immediate mitigation actions. For all other configurations, Medtronic recommends the f…
Mitigation from the vendor CISA ICSMA-23-180-01 · 1 productManually disable the Paceart Messaging Service on the Application Server. 1. Open the "Windows Services" application. 2. Find the 'Paceart Messaging Service.' 3. Right-click the "Paceart Messaging Service" and select "Properties." 4. Select "Stop" to stop running the service and change …
Mitigation from the vendor CISA ICSMA-23-180-01 · 1 productManually disable message queuing on the Application Server. 1. Open server manager. 2. Select "Add roles and features." 3. Select "Start the Remove Roles and Features Wizard." 4. Before you begin-next. 5. Server selection-next. 6. Server roles-next. 7. Features section-take act…
Mitigation from the vendor CISA ICSMA-23-180-01 · 1 productAs long as the Paceart Messaging Service remains disabled, the vulnerability will remain mitigated.
Mitigation from the vendor CISA ICSMA-23-180-01 · 1 productPlease refer to Medtronic's security bulletin for more information.

Advisories and patches

global.medtronic.comMitigation · Vendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2024-11-26
OpenCVESSVC decisionnone—
CNACVSS 3.19.8read 2026-10-23
NVDCVSS 3.18.8read 2026-10-23
CNAweakness (CWE)CWE-502read 2026-10-23
NVDweakness (CWE)CWE-502read 2026-10-23
FIRST EPSSEPSS score28.5 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2023-06-29
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2023-31222?

Is CVE-2023-31222 actively exploited?

Active exploitation of CVE-2023-31222 has not been confirmed. Its EPSS score was 28.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-31222?

CVE-2023-31222 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Running Medtronic Paceart Optima System? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this product CISA KEV additions, October 2026 Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
Running this software? Vulnerability monitoring alerts you to new vulnerabilities in your products.

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database