CVE-2026-5441Out-of-Bounds Read in DicomImageDecoder (PMSCT_RLE1 Decompression)
Updated under an hour ago ()
Does this affect you?
It affects Orthanc DICOM Server and 1 other product. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.19%, higher than 8% of scored CVEs.
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Free account, 1 product
An out-of-bounds read vulnerability exists in the `DecodePsmctRle1` function of `DicomImageDecoder.cpp`. The `PMSCT_RLE1` decompression routine, which decodes the proprietary Philips Compression format, does not properly validate escape markers placed near the end of the compressed data stream. A crafted sequence at the end of the buffer can cause the decoder to read beyond the allocated memory region and leak heap data into the rendered image output.
- CVSS
- 7.1 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
- Weakness (CWE)
- CWE-125
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.19% (percentile 8)
- Assigned by
- certcc
- NVD analysis
- Analyzed
- Record last updated
- Apr 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Orthanc DICOM Server orthanc:dicom_server (from the name) | through 1.12.10 | CNA record |
orthanc-server orthanc orthanc-server:orthanc | before 1.12.11 | NVD |
References
- https://www.orthanc-server.com/product
- https://www.machinespirits.de/not-applicable
- https://kb.cert.org/vuls/id/536588third-party-advisory, vdb-entry
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.