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CVE-2025-11266— Grassroots DICOM (GDCM) Out-of-bounds Write

Quick assessment

Affected
Grassroots DICOM (GDCM)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Grassroots DICOM是Mathieu Malaterre个人开发者的一个软件库。 Grassroots DICOM存在缓冲区错误漏洞，该漏洞源于解析畸形DICOM文件时存在越界写入，可能导致拒绝服务。

CVSS 6.6 · Medium EPSS 0.15% · P4

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-11266

Vulnerability Information
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Vulnerability Title
Grassroots DICOM (GDCM) Out-of-bounds Write
Source: CVE Program / CVE List V5
Vulnerability Description
An out-of-bounds write vulnerability exists in the Grassroots DICOM library (GDCM). The issue is triggered during parsing of a malformed DICOM file containing encapsulated PixelData fragments (compressed image data stored as multiple fragments). This vulnerability leads to a segmentation fault caused by an out-of-bounds memory access due to unsigned integer underflow in buffer indexing. It is exploitable via file input, simply opening a crafted malicious DICOM file is sufficient to trigger the crash, resulting in a denial-of-service condition.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
Grassroots DICOM 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Grassroots DICOM是Mathieu Malaterre个人开发者的一个软件库。 Grassroots DICOM存在缓冲区错误漏洞，该漏洞源于解析畸形DICOM文件时存在越界写入，可能导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Grassroots DICOM (GDCM) 0 ~ 3.0.24 -
NumFocus SimpleITK 0 ~ 2.5.2 -
medInria medInria 0 ~ 4.0 -

II. Public POCs for CVE-2025-11266

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III. Intelligence Information for CVE-2025-11266

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Vendor Advisories for CVE-2025-11266 (1)

Other References for CVE-2025-11266 (2)

IV. Related Vulnerabilities

Same vendor: Grassroots
Same weakness: CWE-787