Buffer Overflow in OFFIS DCMTK (CVE-2026-12805)
Summary
Vulnerability in OFFIS DCMTK (CVE-2026-12805). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
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.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-12805 has been found in OFFIS DCMTK.
Risk of unauthorized operations or information disclosure. CVSS score: 6.3/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "OFFIS DCMTK CVE-2026-12805" on the vendor's site.
CVE-2026-12805 (OFFIS DCMTK) — CWE-119 / CVSS v3 6.3
Attack vector: remote (network-reachable) / unauthenticated
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-119) exists in OFFIS DCMTK.
Check the vendor advisory for the affected versions of OFFIS DCMTK.
Severity: Medium (CVSS 6.3/10). Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで OFFIS DCMTK を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2026-12805 dcmtk Fixed in: 3.6.7-9~deb12u4
- Ubuntu UBUNTU-CVE-2026-12805 dcmtk
References
- advisory vuldb.com
- advisory vuldb.com
- advisory vuldb.com
- advisory nvd.nist.gov
- advisory github.com
- patch git.dcmtk.org
- patch github.com
- report medium.com
- report support.dcmtk.org
- report vuldb.com
- web github.com