CVE-2025-0896

Orthanc Server Missing Authentication for Critical Function

Description

Orthanc server prior to version 1.5.8 does not enable basic authentication by default when remote access is enabled. This could result in unauthorized access by an attacker.

Remediation

Solution:

  • Orthanc recommends that users update to the latest version https://www.orthanc-server.com/download.php  or enable the HTTP authentication by setting the configuration "AuthenticationEnabled": true in the configuration file.

Category

9.2
CVSS
Severity: Critical
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.07%
Third-Party Advisory cisa.gov
Affected: Orthanc Orthanc server
Published at:
Updated at:

References

Link Tags
https://www.cisa.gov/news-events/ics-medical-advisories/icsma-25-037-02 third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2025-0896?
CVE-2025-0896 has been scored as a critical severity vulnerability.
How to fix CVE-2025-0896?
To fix CVE-2025-0896: Orthanc recommends that users update to the latest version https://www.orthanc-server.com/download.php  or enable the HTTP authentication by setting the configuration "AuthenticationEnabled": true in the configuration file.
Is CVE-2025-0896 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-0896 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-0896?
CVE-2025-0896 affects Orthanc Orthanc server.
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