{"id":"UBUNTU-CVE-2026-87020","details":"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.","modified":"2026-09-16T11:43:11Z","published":"2026-09-11T15:17:00Z","upstream":["CVE-2026-87020"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-87020"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-87020"},{"type":"REPORT","url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-253-02.json"},{"type":"REPORT","url":"https://orthanc.uclouvain.be/downloads/index.html"},{"type":"REPORT","url":"https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-253-02"}],"affected":[{"package":{"name":"orthanc","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/orthanc?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.4+dfsg-1","0.9.4+dfsg-2","0.9.5+dfsg-1","1.0.0+dfsg-1","1.0.0+dfsg-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.0.0+dfsg-1build1","binary_name":"orthanc"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-87020.json"}},{"package":{"name":"orthanc","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/orthanc?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.0+dfsg-1build1","1.3.0+dfsg-1build2","1.3.1+dfsg-1","1.3.1+dfsg-1build1","1.3.1+dfsg-1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"orthanc","binary_version":"1.3.1+dfsg-1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-87020.json"}},{"package":{"name":"orthanc","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/orthanc?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.7+dfsg-2","1.5.8+dfsg-2","1.5.8+dfsg-2ubuntu2","1.5.8+dfsg-2ubuntu3","1.5.8+dfsg-2ubuntu4","1.5.8+dfsg-2ubuntu5","1.5.8+dfsg-2ubuntu6"],"ecosystem_specific":{"binaries":[{"binary_name":"orthanc","binary_version":"1.5.8+dfsg-2ubuntu6"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-87020.json"}},{"package":{"name":"orthanc","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/orthanc?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.9.2+really1.9.1+dfsg-1","1.9.7+dfsg-3ubuntu1","1.9.7+dfsg-3ubuntu2","1.9.7+dfsg-4","1.9.7+dfsg-5","1.9.7+dfsg-6","1.10.0+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"liborthancframework1","binary_version":"1.10.0+dfsg-1"},{"binary_version":"1.10.0+dfsg-1","binary_name":"orthanc"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-87020.json"}},{"package":{"name":"orthanc","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/orthanc?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.12.1+dfsg-3","1.12.1+dfsg-4","1.12.1+dfsg-4build1","1.12.2+dfsg-1","1.12.2+dfsg-1build3","1.12.2+dfsg-1build4"],"ecosystem_specific":{"binaries":[{"binary_name":"liborthancframework1","binary_version":"1.12.2+dfsg-1build4"},{"binary_version":"1.12.2+dfsg-1build4","binary_name":"orthanc"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-87020.json"}},{"package":{"name":"orthanc","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/orthanc?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.12.7+dfsg-4build2","1.12.9+dfsg-2","1.12.10+dfsg-1","1.12.10+dfsg-1build1","1.12.10+dfsg-2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.12.10+dfsg-2","binary_name":"liborthancframework1"},{"binary_version":"1.12.10+dfsg-2","binary_name":"orthanc"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-87020.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"},{"type":"CVSS_V4","score":"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"},{"type":"Ubuntu","score":"medium"}]}