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High 8.1HealthcarePublished Sep 11, 2026
CVE-2026-87020Orthanc DICOM Server Integer Overflow or Wraparound
Updated under an hour ago ()
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 45% of scored CVEs.
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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 45)
- Assigned by
- icscert
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Orthanc DICOM Server orthanc:dicom_server (from the name) | before 1.13.0; 1.13.0 not affected | CNA record |
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.