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Orthanc

Records17All Threatist records
Exploited (KEV)0None in CISA KEV
CVSS critical4CVSS 9.0–10.0
CVSS high9CVSS 7.0–8.9

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Orthanc records in CISA KEV

No Orthanc vulnerabilities are listed in CISA KEV.

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Records

17 records

Priority MEDIUM 52

Orthanc server prior to version 1.5.8 does not enable basic authentication by default when remote access is enabled.

CVSS 4.0CRITICAL 9.2 Network No auth No interaction EPSS 0.02478 Published 2025-02-13 Fixed in 1.5.8 CWE-306
Priority MEDIUM 47

Orthanc before 1.12.0 allows authenticated users with access to the Orthanc API to overwrite arbitrary files on the file system, and in specific deployment scenarios allows the attacker to overwrite the configuration, wh…

CVSS 3.1HIGH 8.8 Network Low privileges No interaction EPSS 0.0415 Published 2023-06-29 No fix listed CWE-94
Priority MEDIUM 46

An out-of-bounds read vulnerability exists in the `DecodeLookupTable` function within `DicomImageDecoder.cpp`.

CVSS 3.1CRITICAL 9.1 Network No auth No interaction EPSS 0.00678 Published 2026-04-09 No fix listed CWE-125
Priority MEDIUM 40

A memory exhaustion vulnerability exists in the HTTP server due to unbounded use of the `Content-Length` header.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00588 Published 2026-04-09 No fix listed CWE-770
TI-2026-04760 CVE-2026-5437 · GHSA-gqwr-8hwp-hh46

Out-of-Bounds Read in DicomStreamReader

Priority MEDIUM 40

An out-of-bounds read vulnerability exists in `DicomStreamReader` during DICOM meta-header parsing.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00653 Published 2026-04-09 No fix listed CWE-125
TI-2026-04762 CVE-2026-5439 · GHSA-6cmv-pvcc-pf5h

Memory Exhaustion via Forged ZIP Metadata

Priority LOW 39

A memory exhaustion vulnerability exists in ZIP archive processing.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00433 Published 2026-04-09 No fix listed CWE-770
Priority LOW 39

A gzip decompression bomb vulnerability exists when Orthanc processes HTTP request with `Content-Encoding: gzip`.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00493 Published 2026-04-09 No fix listed CWE-770
Priority LOW 32

An integer overflow in a specified pitch and buffer-size computation leads to a heap out-of-bounds write when Orthanc DICOM Server decodes an attacker-supplied PNG.

CVSS 4.0HIGH 7.2 Network Low privileges No interaction EPSS 0.0056 Published 2026-09-11 Fixed in 1.13.0 CWE-190
TI-2025-14219 CVE-2025-15581 · GHSA-4wvv-g662-rjm9

Improper authentication in orthanc

Priority LOW 30

Orthanc versions before 1.12.10 are affected by an authorisation logic flaw in the application's HTTP Basic Authentication implementation.

CVSS 4.0MEDIUM 4.7 Network Low privileges User interaction EPSS 0.00556 Published 2026-02-18 No fix listed CWE-287
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