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OpenAdvisories
High · 7.5 CVE-2026-50254 EUVD-2026-40421GHSA-69cc-m82h-x8rm

OFFIS DCMTK Toolkit Missing Release of Memory after Effective Lifetime

Published Jun 30, 2026 · Updated Jul 1, 2026 · Assigned by icscert

Description

An unauthenticated remote attacker can repeatedly send a single crafted connection request to leak memory. Against storescp in its default single-process mode, memory grows quickly and the service is eventually killed, after which it stops accepting connections until an operator restarts it.

Affected products

VendorProductAffectedFixed
OFFIS DICOM DCMTK Toolkit ≤ 3.7.0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 dcmtk 3.7.0+really3.7.0-7 —
Debian 13 dcmtk 3.6.9-5+deb13u3 —
Debian 12 dcmtk No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 dcmtk No fix yet —
Ubuntu 26.04 LTS dcmtk No fix yet —
Ubuntu 25.10 dcmtk No fix yet —
Show 5 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 24.04 LTS dcmtk No fix yet —
Ubuntu Pro 22.04 LTS dcmtk No fix yet —
Ubuntu Pro 20.04 LTS dcmtk No fix yet —
Ubuntu Pro 18.04 LTS dcmtk No fix yet —
Ubuntu Pro 16.04 LTS dcmtk No fix yet —

Advisories 1

References