Orthanc
CVE-2025-0896
CRITICAL
Severity by source
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Orthanc server prior to version 1.5.8 does not enable basic authentication by default when remote access is enabled. Rated critical severity (CVSS 9.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Missing Authentication for Critical Function (CWE-306), which allows attackers to access critical functionality without authentication. 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. Affected products include: Orthanc-Server Orthanc. Version information: version 1.5.8.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Require authentication for all sensitive operations, implement defense in depth.
Heap buffer overflow in Orthanc DICOM Server (versions ≤1.12.10) allows unauthenticated remote code execution via malfor
Heap buffer overflow in Orthanc DICOM Server ≤1.12.10 allows unauthenticated remote attackers to achieve arbitrary code
Out-of-bounds heap read in Orthanc DICOM Server ≤1.12.10 allows unauthenticated remote attackers to extract heap memory
Orthanc before 1.12.0 allows authenticated users with access to the Orthanc API to overwrite arbitrary files on the file
Memory exhaustion in Orthanc DICOM Server versions up to 1.12.10 allows remote unauthenticated attackers to crash the se
Memory exhaustion in Orthanc DICOM Server versions ≤1.12.10 allows remote attackers to trigger denial of service by uplo
Memory exhaustion in Orthanc DICOM Server ≤1.12.10 allows unauthenticated remote attackers to trigger denial-of-service
Out-of-bounds read in Orthanc DICOM Server's DicomStreamReader allows remote unauthenticated attackers to trigger denial
Heap out-of-bounds write in Orthanc DICOM Server allows a low-privileged network attacker to corrupt memory by supplying
Heap buffer overflow in Orthanc DICOM Server (versions ≤1.12.10) allows local attackers to corrupt data or crash the ser
Out-of-bounds read in Orthanc DICOM Server's Philips PMSCT_RLE1 decompression allows local attackers to leak heap memory
Cross-site scripting in Orthanc Explorer 2 versions up to and including 1.12.0 enables remote attackers to inject arbitr
Same technique Authentication Bypass
View allVendor StatusVendor
SUSE
Severity: CriticalShare
External POC / Exploit Code
Leaving vuln.today