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TI-2026-69432 Aliases CVE-2026-44038GHSA-4mfc-mxcx-mmpp

Out-of-bounds read in DCMTK JPEG Huffman decoding

Priority LOW 21CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · None · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

OFFIS DCMTK from 3.7.0 contains an out-of-bounds read (CWE-125) in the Huffman decoder of its bundled IJG JPEG libraries. Huffman symbol values are not range-checked by default, so a table with a difference category above 15 makes decoding read memory past the extend tables. An attacker can cause incorrect pixel data or a crash when a user decompresses a crafted JPEG DICOM file with DCMTK.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00107 1st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OFFISDCMTK3.7.0—No fix listedCNA
  • DCMTK VendorOFFIS Affected 3.7.0 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:offis:dcmtk:3.7.0:*:*:*:*:*:*:*3.7.0—OFFIS
  • cpe:2.3:a:offis:dcmtk:3.7.0:*:*:*:*:*:*:* Versions 3.7.0 — ·OFFIS

Remediation

The fix is in commit d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5, and the sources list no fixed version for DCMTK. Building DCMTK with DCMTK_ENABLE_STRICT_HUFFMAN_TABLE_CHECK enables the Huffman symbol range check, which is disabled by default.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-08 Threatist record created from CVE-2026-44038
  2. 2026-10-08 Alias added: GHSA-4mfc-mxcx-mmpp
  3. 2026-10-09 Affected versions changed · Red Hat
  4. 2026-10-09 CVSS score added · Red Hat

References

Patch 1

Advisory 1

  • TI-2026-10943 OFFIS DCMTK ofxml.cc parseFile heap-based overflow CVSS 4.0MEDIUM 5.3
  • TI-2025-08922 DCMTK dcm2img diybrpxt.h memory corruption CVSS 4.0MEDIUM 4.8
  • TI-2022-04568 DCMTK dcmqrscp dcmqrcnf.cc readPeerList null pointer dereference CVSS 4.0MEDIUM 4.8
  • TI-2020-18990 DCMTK dcmqrscp parseQuota stack-based overflow CVSS 4.0MEDIUM 4.8
  • TI-2024-22823 dcmnet in DCMTK before 3.6.9 has a segmentation fault via an invalid DIMSE message. CVSS 3.1MEDIUM 4.3
  • TI-2019-16028 Out-of-bounds write in OFFIS.de DCMTK CVSS 3.1CRITICAL 9.8
See all 35 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences