CVE-2026-5443

critical · 9.8

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.

9.8

CVSS

0.6%

EPSS (exploit prob.)

46th

EPSS percentile

2026-04-09

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-787

Affected products

Vendor	Product	Affected versions
orthanc-server	orthanc	< 1.12.11

Check a specific version with /api/v1/cve/match.

References

https://kb.cert.org/vuls/id/536588
https://www.machinespirits.de/
https://www.orthanc-server.com/

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-5443