Grassroots DICOM (GDCM) Out-of-bounds Write_CVE-2025-11266

6.8 / 10

MEDIUM

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N

Description

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 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.

Basic Information

ID CVE-2025-11266

Source icscert

Published Dec 12, 2025 at 20:48

Affected Product

Vendor Grassroots

Product DICOM (GDCM)

Affected Versions Grassroots DICOM (GDCM) 0
NumFocus SimpleITK 0
medInria medInria 0

CWE Classification

CWE-787

References

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    "published": "2025-12-12T20:48:57.303Z",
    "modified": "2025-12-12T20:48:57.303Z",
    "type": "cve",
    "title": "Grassroots DICOM (GDCM) Out-of-bounds Write",
    "source": "icscert",
    "references": "https://github.com/malaterre/GDCM/releases/tag/v3.2.2\nhttps://www.cisa.gov/news-events/ics-medical-advisories/icsma-25-345-01\nhttps://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsma-25-345-01.json",
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