CVE-2026-5444
7.1 · HIGHOverview
CVE-2026-5444 is a high-severity vulnerability affecting orthanc-server orthanc. It was published on April 9, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from orthanc-server. Update orthanc to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| orthanc-server | orthanc | >= 0, < 1.12.11 | Affected |
Frequently Asked Questions
What is CVE-2026-5444?
CVE-2026-5444 is a high-severity vulnerability affecting orthanc-server orthanc. It was published on April 9, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).
How severe is CVE-2026-5444?
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-5444?
Check the references section for vendor advisories and patches from orthanc-server. Update orthanc to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-5444?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-5444 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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