{"id":"CVE-2025-11266","title":"An out-of-bounds write vulnerability exists in the Grassroots DICOM library (GDCM)","summary":"An out-of-bounds write vulnerability exists in the Grassroots DICOM library (GDCM). The issue is triggered during parsing of a malformed DICOM file containing encapsulated PixelData fragments (compressed image data stored as multiple fra…","severity":"medium","cvss":6.6,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H","cwe":["CWE-787"],"published":"2025-12-12","updated":"2026-10-07","sourceUpdated":"2026-10-07T20:10:01.970","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-11266","references":[{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsma-25-345-01.json","label":"ics-cert@hq.dhs.gov"},{"url":"https://github.com/malaterre/GDCM/releases/tag/v3.2.2","label":"ics-cert@hq.dhs.gov"},{"url":"https://www.cisa.gov/news-events/ics-medical-advisories/icsma-25-345-01","label":"ics-cert@hq.dhs.gov"},{"url":"https://github.com/malaterre/GDCM/commit/5829c95c8ac3afa9a3a3413675e948959c28a789","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00146,"epssPercentile":0.03282,"ingestedAt":"2026-10-07T20:46:46.910Z","slug":"CVE-2025-11266","body":"## Overview\n\nAn out-of-bounds write vulnerability exists in the Grassroots DICOM library (GDCM). The issue is triggered during parsing of a malformed DICOM file containing encapsulated PixelData fragments (compressed image data stored as multiple fragments). This vulnerability leads to a segmentation fault caused by an out-of-bounds memory access due to unsigned integer underflow in buffer indexing. It is exploitable via file input, simply opening a crafted malicious DICOM file is sufficient to trigger the crash, resulting in a denial-of-service condition.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":36.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}