# CVE-2026-87020

## Summary

- **CVE ID:** CVE-2026-87020
- **Severity:** HIGH
- **CVSS Score:** 8.1 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-190
- **Published:** Sep 11, 2026
- **Last Modified:** Sep 11, 2026

## Description

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.

## Affected Products

- Orthanc — DICOM Server (0)
- Orthanc — DICOM Server (1.13.0)

## References

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

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-12._