OFFIS DCMTK up to 3.7.0 ConcatenationLoader heap-based overflow

Summaryinfo

A vulnerability categorized as critical has been discovered in OFFIS DCMTK up to 3.7.0. Affected by this vulnerability is the function ConcatenationLoader. Executing a manipulation can lead to heap-based overflow. The identification of this vulnerability is CVE-2026-97059. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in OFFIS DCMTK up to 3.7.0. It has been declared as critical. This vulnerability affects the function ConcatenationLoader. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at support.dcmtk.org. This vulnerability was named CVE-2026-97059 since 09/24/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/24/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• OFFIS

Name

• DCMTK

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7.0

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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