{"id":"CVE-2026-44038","published":"2026-10-08T13:17:17.963","lastModified":"2026-10-08T21:10:00.133","description":"A global out-of-bounds read in the Huffman decoder of the bundled IJG JPEG libraries (dcmjpeg/libijg8, libijg12 and libijg16) of OFFIS DCMTK 3.7.0 allows an attacker to read memory beyond the extend_test[] and extend_offset[] tables, causing incorrectly decoded pixel data or a crash, via a DICOM file with a crafted JPEG stream whose Huffman table defines a difference category above 15. Huffman symbol values are not range-checked unless DCMTK is built with DCMTK_ENABLE_STRICT_HUFFMAN_TABLE_CHECK, which is disabled by default. dcmdjpeg and any application that decompresses JPEG DICOM images with DCMTK are affected. The issue is fixed in commit d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5.","cvssScore":4.4,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","cwes":["CWE-125"],"vendors":[],"products":[],"references":[{"url":"https://github.com/DCMTK/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5","tags":[]},{"url":"https://support.dcmtk.org/redmine/issues/1221","tags":[]}],"exploitRefs":[{"url":"https://github.com/DCMTK/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5","tags":[]}],"hasPoc":true,"ai":null}