CVE-2026-5442 — Heap Buffer Overflow in DICOM Image Decoder via VR UL Dimensions
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 …
Published: 2026-04-09 · CVSS: 9.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7