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.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Orthanc | DICOM Server | affected |
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Project Subscriptions
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Advisories
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Fixes
Solution
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Workaround
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References
History
Thu, 09 Apr 2026 15:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Heap Buffer Overflow in PAM Image Buffer Allocation | |
| References |
|
Projects
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MITRE
Status: PUBLISHED
Assigner: certcc
Published:
Updated: 2026-04-09T14:42:30.696Z
Reserved: 2026-04-02T19:23:20.072Z
Link: CVE-2026-5444
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-04-09T15:16:16.760
Modified: 2026-04-09T15:16:16.760
Link: CVE-2026-5444
Redhat
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OpenCVE Enrichment
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Weaknesses
No weakness.