OFFIS DCMTK up to 3.7.0 ofstd/libsrc/ofxml.cc XMLNode::parseFile heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k3.59-

Summaryinfo

A vulnerability has been found in OFFIS DCMTK up to 3.7.0 and classified as critical. The impacted element is the function XMLNode::parseFile in the library ofstd/libsrc/ofxml.cc. The manipulation leads to heap-based overflow. This vulnerability is traded as CVE-2026-12805. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. It is recommended to apply a patch to fix this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Detailsinfo

A vulnerability was found in OFFIS DCMTK up to 3.7.0. It has been rated as critical. This issue affects the function XMLNode::parseFile in the library ofstd/libsrc/ofxml.cc. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to 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(). Impacted is confidentiality, integrity, and availability.

It is possible to read the advisory at support.dcmtk.org. The identification of this vulnerability is CVE-2026-12805. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details as well as a public exploit are known.

The exploit is available at medium.com. It is declared as proof-of-concept. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Applying the patch 1d4b3815c0987840a983160bfc671fef63a3105b is able to eliminate this problem. The bugfix is ready for download at github.com.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 1d4b3815c0987840a983160bfc671fef63a3105b

Timelineinfo

06/21/2026 Advisory disclosed
06/21/2026 +0 days VulDB entry created
06/21/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: 1208
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-12805 (🔒)
GCVE (CVE): GCVE-0-2026-12805
GCVE (VulDB): GCVE-100-372599
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/21/2026 06:17
Changes: 06/21/2026 06:17 (61)
Complete: 🔍
Submitter: FaboHerrrera
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #836273: DCMTK 3.7.0 and below Heap-based Buffer Overflow (by FaboHerrrera)

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