Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsma-25-3
- 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/5829c95c8ac3afa9a3a3413675e948959c28a78
FAQ
What is CVE-2025-11266?
CVE-2025-11266 is a vulnerability with a CVSS score of 6.6 (MEDIUM). 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 (compres...
How severe is CVE-2025-11266?
CVE-2025-11266 has been rated MEDIUM with a CVSS base score of 6.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-11266?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.