{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-44034", "assignerOrgId": "33c584b5-0579-4c06-b2a0-8d8329fcab9c", "state": "PUBLISHED", "assignerShortName": "securin", "dateReserved": "2026-05-05T02:49:00.667Z", "datePublished": "2026-10-08T12:55:09.201Z", "dateUpdated": "2026-10-08T14:09:23.670Z"}, "containers": {"cna": {"title": "Heap out-of-bounds read in DCMTK RLE decodeFrame()", "descriptions": [{"lang": "en", "value": "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."}], "affected": [{"vendor": "OFFIS", "product": "DCMTK", "collectionURL": "https://github.com/DCMTK/dcmtk", "repo": "https://github.com/DCMTK/dcmtk", "modules": ["dcmdata"], "programFiles": ["dcmdata/libsrc/dcrleccd.cc"], "cpes": ["cpe:2.3:a:offis:dcmtk:3.7.0:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "versions": [{"version": "3.7.0", "status": "affected"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read"}]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"version": "4.0", "vectorString": "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", "baseScore": 4.8, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L", "baseScore": 4.4, "baseSeverity": "MEDIUM"}}], "solutions": [{"lang": "en", "value": "Update to a DCMTK version that contains commit 45469f3c30037e9c7159290e4bb74cd7b3b9ef1d. As of the publication date, no tagged release after DCMTK 3.7.0 includes this fix, so apply the commit or build from the current master branch."}], "references": [{"url": "https://support.dcmtk.org/redmine/issues/1213", "name": "DCMTK issue #1213", "tags": ["issue-tracking", "vendor-advisory"]}, {"url": "https://github.com/DCMTK/dcmtk/commit/45469f3c30037e9c7159290e4bb74cd7b3b9ef1d", "name": "Fix commit", "tags": ["patch"]}], "credits": [{"lang": "en", "value": "Arjun Basnet from Securin", "type": "finder"}], "timeline": [{"time": "2026-05-25T00:00:00.000Z", "lang": "en", "value": "CVE ID shared with the vendor"}, {"time": "2026-05-23T00:00:00.000Z", "lang": "en", "value": "Fix committed by the vendor"}, {"time": "2026-06-19T00:00:00.000Z", "lang": "en", "value": "Vendor approved publication"}], "source": {"discovery": "EXTERNAL"}, "providerMetadata": {"orgId": "33c584b5-0579-4c06-b2a0-8d8329fcab9c", "shortName": "securin", "dateUpdated": "2026-10-08T12:55:09.201Z"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-08T14:09:13.036801Z", "id": "CVE-2026-44034", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-08T14:09:23.670Z"}}]}}

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{"bugzilla": {"description": "dcmtk: dcmtk: Information disclosure via crafted RLE DICOM file", "id": "2547950", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2547950"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L", "status": "draft"}, "cwe": "CWE-125", "details": ["A flaw was found in DCMTK. A heap-based out-of-bounds read vulnerability occurs in the frame decoding routine due to missing length validation on image data fragments. By enticing a user or application to process a specially crafted Run-Length Encoded (RLE) DICOM file, an attacker could trigger an out-of-bounds memory read, leading to information disclosure of adjacent heap memory or causing an application crash that results in a Denial of Service (DoS)."], "name": "CVE-2026-44034", "public_date": "2026-10-08T12:55:09Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-44034\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-44034\nhttps://github.com/DCMTK/dcmtk/commit/45469f3c30037e9c7159290e4bb74cd7b3b9ef1d\nhttps://support.dcmtk.org/redmine/issues/1213"], "statement": "This vulnerability is rated as Moderate impact because exploitation requires a user or application to process an untrusted medical image file, limiting the outcome to bounded heap memory disclosure or a process crash rather than arbitrary code execution. Standard command-line utilities within the package avoid the defective code path, which is primarily exposed to custom applications that perform frame-by-frame RLE decoding. Furthermore, DCMTK is not included in core Red Hat Enterprise Linux releases and is maintained only in community repositories.", "threat_severity": "Moderate"}