# CVE-2026-3650

## Summary

- **CVE ID:** CVE-2026-3650
- **Severity:** HIGH
- **CVSS Score:** 8.7 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-401
- **Published:** Mar 26, 2026
- **Last Modified:** Mar 27, 2026

## Description

A memory leak exists in the Grassroots DICOM library (GDCM). The bug occurs when parsing malformed DICOM files with non-standard VR types in file meta information. The vulnerability leads to vast memory allocations and resource depletion, triggering a denial-of-service condition. A maliciously crafted file can fill the heap in a single read operation without properly releasing it.

## Affected Products

- Grassroots — Grassroots DICOM (GDCM) (3.2.2)

## References

- [CNA](https://sourceforge.net/projects/gdcm/)
- [CNA](https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-083-01)
- [CNA](https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-083-01.json)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.35%
- **EPSS Percentile:** 28.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._