CVE-2025-36521 MicroDicom DICOM Viewer Out-of-bounds Read
An attacker can cause memory corruption and potential code execution by tricking a user into opening a malicious DICOM file in MicroDicom Viewer.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-36521?
CVE-2025-36521 is a high-severity memory corruption vulnerability in MicroDicom DICOM Viewer, published on 1 May 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
MicroDicom DICOM Viewer is vulnerable to an out-of-bounds read which may allow an attacker to cause memory corruption within the application. The user must open a malicious DCM file for exploitation.
Weakness: CWE-125
Which versions are affected by CVE-2025-36521?
How do I fix CVE-2025-36521?
No fix has been published for CVE-2025-36521 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-36521 being exploited?
There is no known exploitation of CVE-2025-36521 in the wild and no public exploit code.
Sources
Also known as GHSA-cm8f-5fx7-mv6c.