CVE-2026-12805: Heap-based Buffer Overflow in OFFIS DCMTK
A flaw has been found in OFFIS DCMTK up to 3.7.0. The affected element is the function XMLNode::parseFile in the library ofstd/libsrc/ofxml.cc. Executing a manipulation can lead to heap-based buffer overflow. The attack may be performed from remote. The exploit has been published and may be used. This patch is called 1d4b3815c0987840a983160bfc671fef63a3105b. It is best practice to apply a patch to resolve this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
AI Analysis
Technical Summary
CVE-2026-12805 is a heap-based buffer overflow vulnerability in the OFFIS DCMTK library affecting versions up to 3.7.0. The issue resides in the XMLNode::parseFile function in the source file ofstd/libsrc/ofxml.cc. Remote attackers can exploit this flaw by manipulating input to cause a heap overflow, potentially leading to memory corruption. The vendor responded quickly and released a patched version identified by commit 1d4b3815c0987840a983160bfc671fef63a3105b. The vulnerability is rated medium severity with a CVSS 4.0 score of 5.3.
Potential Impact
Successful exploitation of this vulnerability can lead to heap-based buffer overflow, which may cause memory corruption and potentially allow an attacker to disrupt application behavior or execute arbitrary code. The attack vector is remote with no privileges required, but user interaction is needed. The overall impact is rated medium.
Mitigation Recommendations
A patch fixing this vulnerability has been released by the vendor in a version later than 3.7.0. It is recommended to update to the fixed version of OFFIS DCMTK as soon as possible to remediate this issue. Since the vendor has provided an official fix, applying the patch is the primary mitigation step.
CVE-2026-12805: Heap-based Buffer Overflow in OFFIS DCMTK
Description
A flaw has been found in OFFIS DCMTK up to 3.7.0. The affected element is the function XMLNode::parseFile in the library ofstd/libsrc/ofxml.cc. Executing a manipulation can lead to heap-based buffer overflow. The attack may be performed from remote. The exploit has been published and may be used. This patch is called 1d4b3815c0987840a983160bfc671fef63a3105b. It is best practice to apply a patch to resolve this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
CVSS v4.0
Score 5.3medium
Affected software
pkg:github/dcmtk/dcmtkcpe:2.3:a:offis:dcmtk:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-12805 is a heap-based buffer overflow vulnerability in the OFFIS DCMTK library affecting versions up to 3.7.0. The issue resides in the XMLNode::parseFile function in the source file ofstd/libsrc/ofxml.cc. Remote attackers can exploit this flaw by manipulating input to cause a heap overflow, potentially leading to memory corruption. The vendor responded quickly and released a patched version identified by commit 1d4b3815c0987840a983160bfc671fef63a3105b. The vulnerability is rated medium severity with a CVSS 4.0 score of 5.3.
Potential Impact
Successful exploitation of this vulnerability can lead to heap-based buffer overflow, which may cause memory corruption and potentially allow an attacker to disrupt application behavior or execute arbitrary code. The attack vector is remote with no privileges required, but user interaction is needed. The overall impact is rated medium.
Mitigation Recommendations
A patch fixing this vulnerability has been released by the vendor in a version later than 3.7.0. It is recommended to update to the fixed version of OFFIS DCMTK as soon as possible to remediate this issue. Since the vendor has provided an official fix, applying the patch is the primary mitigation step.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-06-21T04:12:52.334Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a383e01eed863c81e42369d
Added to database: 06/21/2026, 19:39:45 UTC
Last enriched: 06/28/2026, 21:46:53 UTC
Last updated: 08/06/2026, 01:59:20 UTC
Views: 105
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