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CVE-2026-5442
Published: Apr 9, 2026
Modified: Apr 14, 2026
PUBLISHED
Description
A heap buffer overflow vulnerability exists in the DICOM image decoder. Dimension fields are encoded using Value Representation (VR) Unsigned Long (UL), instead of the expected VR Unsigned Short (US), which allows extremely large dimensions to be processed. This causes an integer overflow during frame size calculation and results in out-of-bounds memory access during image decoding.
| Vendor | Product | Versions |
|---|---|---|
Orthanc | DICOM Server | affected 0 - <= 1.12.10 |
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