Out-of-Bounds Read in Grassroot DICOM RLECodec Leaks Heap Data

Publication date: 2025-12-16

Last updated on: 2025-12-16

Assigner: Talos

Description

An out-of-bounds read vulnerability exists in the RLECodec::DecodeByStreams functionality of Grassroot DICOM 3.024. A specially crafted DICOM file can lead to leaking heap data. An attacker can provide a malicious file to trigger this vulnerability.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-12-16

Last Modified

2025-12-16

Generated

2026-07-06

AI Q&A

2025-12-17

EPSS Evaluated

2026-07-05

NVD

CVE-2025-48429

Affected Vendors & Products

Vendor	Product	Version / Range
grassroot_dicom	grassroot_dicom	3.024

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-119	The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Attack-Flow Graph

Executive Summary

This vulnerability is an out-of-bounds read in the RLECodec::DecodeByStreams functionality of Grassroot DICOM 3.024. It occurs when processing a specially crafted DICOM file, which can cause the program to read memory outside the intended buffer, potentially leaking heap data. An attacker can exploit this by providing a malicious DICOM file to trigger the vulnerability.

Impact Analysis

This vulnerability can lead to leaking sensitive heap data, which may include confidential information. Because it has high impact on confidentiality, integrity, and availability, an attacker exploiting this could compromise system data, affect system integrity, and potentially disrupt operations.

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