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CVE-2026-97059— DCMTK through 3.7.0 Heap Over-read via NumberOfFrames

Quick assessment

Affected
OFFIS DCMTK
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.

在 DCMTK 3.7.0 及更早版本中，ConcatenationLoader 存在堆溢出读取漏洞。该漏洞源于在复制像素数据帧时，未将 PixelData 缓冲区的实际长度与声明的 NumberOfFrames 进行匹配验证。攻击者可构造恶意的 DICOM 实例，使其声明的帧数多于缓冲区中实际包含的帧数，从而触发堆溢出读取，导致应用程序崩溃或泄露相邻的堆内存数据。

CVSS 8.2 · High EPSS 0.35% · P26

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
OFFIS DCMTK ≤ 3.7.0 affected
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I. Basic Information for CVE-2026-97059

Vulnerability Information
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Vulnerability Title
DCMTK through 3.7.0 Heap Over-read via NumberOfFrames
Source: CVE Program / CVE List V5
Vulnerability Description
DCMTK through 3.7.0 contains a heap over-read vulnerability in ConcatenationLoader that copies pixel data frames without validating the PixelData buffer length against the declared NumberOfFrames. Attackers can craft malicious DICOM instances declaring more frames than the buffer contains to trigger heap over-reads that crash the application or leak adjacent heap memory.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
OFFIS DCMTK 0 ~ 3.7.0 -

II. Public POCs for CVE-2026-97059

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III. Intelligence Information for CVE-2026-97059

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Patches & Fixes for CVE-2026-97059 (4)

Vendor Advisories for CVE-2026-97059 (1)

Other References for CVE-2026-97059 (1)

IV. Related Vulnerabilities

Same product: DCMTK
Same vendor: OFFIS
Same weakness: CWE-125

V. Comments for CVE-2026-97059

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