CVE-2023-35734 Sante DICOM Viewer Pro DCM File Parsing Use-After-Free Information Disclosure Vulnerability
Remote attackers can disclose sensitive information and potentially execute code by tricking users into opening malicious DCM files in Sante DICOM Viewer Pro.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-35734?
CVE-2023-35734 is a low-severity use after free vulnerability in Sante DICOM Viewer Pro, published on 3 May 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Sante DICOM Viewer Pro DCM File Parsing Use-After-Free Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Sante DICOM Viewer Pro. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of DCM files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-21405.
Weakness: CWE-416
Which versions are affected by CVE-2023-35734?
It affects 1 product.
Products include Santesoft Dicom Viewer Pro.
How do I fix CVE-2023-35734?
No fix has been published for CVE-2023-35734 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2023-35734 being exploited?
There is no known exploitation of CVE-2023-35734 in the wild and no public exploit code.
Other vulnerabilities in Sante DICOM Viewer Pro
- CVE-2025-5307 Santesoft Sante DICOM Viewer Pro Out-of-bounds Read
- CVE-2025-2480 Santesoft Sante DICOM Viewer Pro Out-of-bounds Write
- CVE-2026-2034 Sante DICOM Viewer Pro DCM File Parsing Buffer Overflow Remote Code Execution Vulnerability
- CVE-2025-5481 Sante DICOM Viewer Pro DCM File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
- CVE-2023-34295 Sante DICOM Viewer Pro DCM File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Sources
Also known as GHSA-4wfm-8g5c-rr8h.