CVE-2026-5443 (GCVE-0-2026-5443)

Vulnerability from cvelistv5 – Published: 2026-04-09 14:43 – Updated: 2026-04-14 16:34
VLAI?
Title
Heap Buffer Overflow in DICOM Image Decoder (Palette Color Decode)
Summary
A heap buffer overflow vulnerability exists during the decoding of `PALETTE COLOR` DICOM images. Pixel length validation uses 32-bit multiplication for width and height calculations. If these values overflow, the validation check incorrectly succeeds, allowing the decoder to read and write to memory beyond allocated buffers.
Severity ?
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Orthanc DICOM Server Affected: 0 , ≤ 1.12.10 (custom)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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