critical9.8
CVE-2026-5443
A heap buffer overflow vulnerability exists during the decoding of `PALETTE COLOR` DICOM images.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Orthanc-Server | Orthanc | before 1.12.11 |