CVE-2025-11266

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.

CVSS v3 6.6 MEDIUM

6.6^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 4.7

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsma-25-345-01.json
https://github.com/malaterre/GDCM/releases/tag/v3.2.2
https://www.cisa.gov/news-events/ics-medical-advisories/icsma-25-345-01
https://github.com/malaterre/GDCM/commit/5829c95c8ac3afa9a3a3413675e948959c28a789

Configurations

No configuration.

History

No history.

Information

Published : 2025-12-12 21:15

Updated : 2026-01-20 21:16

NVD link : CVE-2025-11266

Mitre link : CVE-2025-11266

CVE.ORG link : CVE-2025-11266

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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