Advisory Details

December 17th, 2025

Sante PACS Server HTTP Content-Length Header Handling NULL Pointer Dereference Denial-of-Service Vulnerability

ZDI-25-1104
ZDI-CAN-26770

CVE ID CVE-2025-14501
CVSS SCORE 7.5, AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AFFECTED VENDORS Sante
AFFECTED PRODUCTS PACS Server
VULNERABILITY DETAILS

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Sante PACS Server. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of HTTP Content-Length header. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
ADDITIONAL DETAILS

Fixed in version 4.2.3
DISCLOSURE TIMELINE
  • 2025-06-12 - Vulnerability reported to vendor
  • 2025-12-17 - Coordinated public release of advisory
  • 2025-12-17 - Advisory Updated
CREDIT Artur Mattern
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