CVE-2025-15581

CVSS 4.7 MEDIUMEPSS 0.4%CWE-287

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 4.7EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

18 Feb 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Orthanc versions before 1.12.10 are affected by an authorisation logic flaw in the application's HTTP Basic Authentication implementation. Successful exploitation could result in Privilege Escalation, potentially allowing full administrative access.

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

Affected products

orthanc-server · orthanc

References

https://discourse.orthanc-server.org/t/orthanc-1-12-10/6326 https://lists.debian.org/debian-lts-announce/2026/02/msg00033.html https://orthanc.uclouvain.be/bugs/show_bug.cgi?id=252 https://projectblack.io/blog/orthanc-1-12-9-user-impersonation/#exploitation