High 8.1HealthcarePublished Sep 11, 2026

CVE-2026-87020Orthanc DICOM Server Integer Overflow or Wraparound

Updated under an hour ago (Oct 28, 2026, 11:20 PM ET)

This data is behind schedule: last updated Oct 28, 2026, 9:23 PM ET. We are working on it.Behind: National Vulnerability Database (CVE API 2.0, CPE API 2.0).

Does this affect you?

It affects Orthanc DICOM Server. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.56%, higher than 46% of scored CVEs.

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Every CVE for Orthanc DICOM Server

Exploited in the last 30 days

An integer overflow in a specified pitch and buffer-size computation leads to a heap out-of-bounds write when Orthanc DICOM Server decodes an attacker-supplied PNG.

CVSS: 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Weakness (CWE): CWE-190
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.56% (percentile 46)
Assigned by: icscert
NVD analysis: Awaiting Analysis
Record last updated: Sep 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Orthanc DICOM Server orthanc:dicom_server (from the name)	before 1.13.0; 1.13.0 not affected	CNA record

References

References

https://orthanc.uclouvain.be/downloads/index.html
https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-253-02
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-253-02.json

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.