CVE-2025-3481
Published: 22 May 2025
Summary
CVE-2025-3481 is a high-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Meddream Pacs Server. Its CVSS base score is 7.8 (High).
Operationally, ranked in the top 13.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The vulnerability CVE-2025-3481 is a stack-based buffer overflow in the DICOM file parsing component of MedDream PACS Server. It arises from missing validation on the length of user-supplied data before copying it into a fixed-length stack buffer, and was originally tracked as ZDI-CAN-25827.
Remote attackers can exploit the flaw without authentication by delivering a crafted DICOM file to an affected installation. Successful exploitation grants arbitrary code execution in the context of the service account.
The Zero Day Initiative published advisory ZDI-25-245 for this issue. The EPSS score has remained flat at 0.0307 with no material rise after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-16099
Vulnerability details
MedDream PACS Server DICOM File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MedDream PACS Server. Authentication is not required to exploit this vulnerability. The specific flaw…
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exists within the parsing of DICOM files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-25827.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.