Integer overflow in the ImageRegionReader::ReadIntoBuffer function in MediaStorageAndFileFormat/gdcmImageRegionReader.cxx in Grassroots DICOM (aka GDCM) before 2.6.2 allows attackers to execute arbitrary code via crafted header dimensions in a DICOM image file, which triggers a buffer overflow.
Severity
CVSS 3.0
10.0 critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS
16% chance of exploitation in the next 30 days; higher than 96% of CVEs (scores of 2026-10-31)