Buffer overflow in Meddream Pacs Server
CVE-2025-3481
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 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.
Vulnerability class: Buffer Overflow
EPSS: 0.005 (41.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Meddream Pacs Server — versions MedDream PACS Premium 7.3.3.840
- Meddream Pacs_server
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-3481?
- CVE-2025-3481 is a high-severity vulnerability in Meddream Pacs Server, classified under Stack-based Buffer Overflow. CVSS score: 7.8/10. Published 2025-05-22.
- How severe is CVE-2025-3481?
- High severity. CVSS v3 base score is 7.8 out of 10.