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CVE-2026-44037

Status: Awaiting AnalysisMedium (6.8)—

Uncontrolled mutual recursion between DcmJSONReader::parseDataSet(), DcmJSONReader::parseElement() and DcmJSONReader::parseSequence() in dcmdata/libsrc/dcjsonrd.cc of OFFIS DCMTK 3.7.0 allows an attacker to cause a denial of service (stack exhaustion and process crash) via a crafted DICOM JSON document with deeply nested sequence (SQ) values. The json2dcm tool and any service that converts untrusted DICOM JSON (for example, DICOMweb payloads) with this reader are affected. The issue is fixed in commit cf955e64c35a1e07ba10698f639d5dcdec53b9d7.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

Requiere interacción del usuario (UI:P) para abrir un documento JSON malicioso. Causa DoS por agotamiento de pila mediante recursión mutua no controlada en lectura DICOM JSON.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Filter Network TrafficApplication Isolation and SandboxingExploit ProtectionUpdate Software

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Offis — DcmtkAI

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-44037",
  "cveTags": [],
  "metrics": {
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          "options": [
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              "exploitation": "none"
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              "automatable": "no"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2026-10-08T14:08:30.608062Z"
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
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          "confidentialityImpact": "NONE"
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    ],
    "cvssMetricV40": [
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        "type": "Secondary",
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        "cvssData": {
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          "valueDensity": "NOT_DEFINED",
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          "vulnIntegrityImpact": "NONE",
          "integrityRequirement": "NOT_DEFINED",
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          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
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          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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  "affected": [
    {
      "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
      "affectedData": [
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            "cpe:2.3:a:offis:dcmtk:3.7.0:*:*:*:*:*:*:*"
          ],
          "repo": "https://github.com/DCMTK/dcmtk",
          "vendor": "OFFIS",
          "modules": [
            "dcmdata"
          ],
          "product": "DCMTK",
          "versions": [
            {
              "status": "affected",
              "version": "3.7.0"
            }
          ],
          "programFiles": [
            "dcmdata/libsrc/dcjsonrd.cc"
          ],
          "collectionURL": "https://github.com/DCMTK/dcmtk",
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2026-10-08T13:17:17.817",
  "references": [
    {
      "url": "https://github.com/DCMTK/dcmtk/commit/cf955e64c35a1e07ba10698f639d5dcdec53b9d7",
      "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c"
    },
    {
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      "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c"
    }
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  "vulnStatus": "Awaiting Analysis",
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          "value": "CWE-674"
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      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Uncontrolled mutual recursion between DcmJSONReader::parseDataSet(), DcmJSONReader::parseElement() and DcmJSONReader::parseSequence() in dcmdata/libsrc/dcjsonrd.cc of OFFIS DCMTK 3.7.0 allows an attacker to cause a denial of service (stack exhaustion and process crash) via a crafted DICOM JSON document with deeply nested sequence (SQ) values. The json2dcm tool and any service that converts untrusted DICOM JSON (for example, DICOMweb payloads) with this reader are affected. The issue is fixed in commit cf955e64c35a1e07ba10698f639d5dcdec53b9d7."
    }
  ],
  "lastModified": "2026-10-08T21:10:00.133",
  "sourceIdentifier": "33c584b5-0579-4c06-b2a0-8d8329fcab9c"
}