CVE-2026-5444
Heap Buffer Overflow in PAM Image Buffer Allocation
- State
- Published
- Severity
- 7.1 High
- Published
- Apr 9, 2026
- Updated
- Apr 14, 2026
- Reserved
- Apr 2, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.1 High | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H | CISA-ADP |
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
DICOM ServerOrthanc |
|
References
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