---
id: CVE-2026-44035
title: >-
  Uncontrolled recursion in DcmDicomDir::moveRecordToTree() in
  dcmdata/libsrc/dcdicdir.cc of OFFIS DCMTK 3.7.0 allows an attacker to cause a
  denial of service (stack exhaustion and process crash) via a crafted DICOMDIR
  file with a deeply c…
summary: >-
  Uncontrolled recursion in DcmDicomDir::moveRecordToTree() in
  dcmdata/libsrc/dcdicdir.cc of OFFIS DCMTK 3.7.0 allows an attacker to cause a
  denial of service (stack exhaustion and process crash) via a crafted DICOMDIR
  file with a deeply c…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-674
vendor: OFFIS
product: DCMTK
affected:
  - DCMTK 3.7.0
published: '2026-10-08'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T15:17:53.967'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-44035'
references:
  - url: >-
      https://github.com/DCMTK/dcmtk/commit/ca761f7f3dcaaddaa95be87cf5d736138d7c3a9f
    label: 33c584b5-0579-4c06-b2a0-8d8329fcab9c
  - url: 'https://support.dcmtk.org/redmine/issues/1215'
    label: 33c584b5-0579-4c06-b2a0-8d8329fcab9c
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-08T14:08:51.179526Z'
ingestedAt: '2026-10-08T13:42:55.145Z'
---

## Overview

Uncontrolled recursion in DcmDicomDir::moveRecordToTree() in dcmdata/libsrc/dcdicdir.cc of OFFIS DCMTK 3.7.0 allows an attacker to cause a denial of service (stack exhaustion and process crash) via a crafted DICOMDIR file with a deeply chained sequence of directory records linked through the Offset of Referenced Lower-Level Directory Entity attribute. Any application that opens the DICOMDIR is affected, including dcmgpdir and media viewers built on DCMTK. The issue is fixed in commit ca761f7f3dcaaddaa95be87cf5d736138d7c3a9f.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.