CVE-2026-87020CWE-190

CVE-2026-87020

High · published September 11, 2026

CVSS v3.1
8.1
EPSS
1%
Percentile
45.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CVSS v4.0
7.2 · 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
EPSS
0.00560 · 45.8th percentile
Weakness
CWE-190 · Integer Overflow or Wraparound
Published
2026-09-11T19:17Z
References (3)
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-253-02.json · [email protected]https://orthanc.uclouvain.be/downloads/index.html · [email protected]https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-253-02 · [email protected]
EPSS history
Timeline
  • 13 SEP 03:23Z
    EPSS moved — → 1%
    epss
  • 11 SEP 14:11Z
    Orthanc DICOM Server Integer Overflow or Wraparound
    cvelistv5