high7.1
CVE-2026-5444
A heap buffer overflow vulnerability exists in the PAM image parsing logic.
Impact
A heap buffer overflow vulnerability exists in the PAM image parsing logic. When Orthanc processes a crafted PAM image embedded in a DICOM file, image dimensions are multiplied using 32-bit unsigned arithmetic. Specially chosen values can cause an integer overflow during buffer size calculation, resulting in the allocation of a small buffer followed by a much larger write operation during pixel processing.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Orthanc-Server | Orthanc | before 1.12.11 |