{"id":"CVE-2026-44034","revision":"dde7699d71a645d5a5c8901c22e46be1","records":[{"revision":"dde7699d71a645d5a5c8901c22e46be1","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-44034","aliases":[],"title":"Heap out-of-bounds read in DCMTK RLE decodeFrame()","description":"A heap-based out-of-bounds read in DcmRLECodecDecoder::decodeFrame() in dcmdata/libsrc/dcrleccd.cc of OFFIS DCMTK 3.7.0 allows an attacker to read up to 63 bytes of adjacent heap memory, or cause a crash, via a crafted RLE Lossless DICOM file whose pixel data fragment is shorter than the 64-byte RLE header. The function copies 64 bytes without checking the fragment length, a check that the sibling function decode() already performs. Applications that decode RLE images frame by frame (for example, through DcmPixelData::getUncompressedFrame()) are affected. The dcmdrle command-line tool uses decode() and is not affected. The issue is fixed in commit 45469f3c30037e9c7159290e4bb74cd7b3b9ef1d.","state":0,"publishedAt":"2026-10-08T12:55:09.201+00:00","modifiedAt":"2026-10-08T14:09:23.67+00:00","affected":[{"ecosystem":"https://github.com/DCMTK/dcmtk","name":"DCMTK","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"OFFIS\",\n                    \"product\": \"DCMTK\",\n                    \"collectionURL\": \"https://github.com/DCMTK/dcmtk\",\n                    \"repo\": \"https://github.com/DCMTK/dcmtk\",\n                    \"modules\": [\n                        \"dcmdata\"\n                    ],\n                    \"programFiles\": [\n                        \"dcmdata/libsrc/dcrleccd.cc\"\n                    ],\n                    \"cpes\": [\n                        \"cpe:2.3:a:offis:dcmtk:3.7.0:*:*:*:*:*:*:*\"\n                    ],\n                    \"defaultStatus\": \"unknown\",\n                    \"versions\": [\n                        {\n                            \"version\": \"3.7.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N","score":4.8,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","score":4.4,"severity":"MEDIUM"}],"references":["https://support.dcmtk.org/redmine/issues/1213","https://github.com/DCMTK/dcmtk/commit/45469f3c30037e9c7159290e4bb74cd7b3b9ef1d"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-44034","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-44034","identifiers":["CVE-2026-44034"]},"retained":false,"historicalAffected":[]}],"coverage":[]}