CVE catalog

CVE-2025-11266

gdcm: CVE-2025-11266

Severity: Medium · CVSS 6.8CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published: Dec 11, 2025, 7:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.15% · Oct 25, 2026

An out-of-bounds write vulnerability exists in the Grassroots DICOM library (GDCM). The issue is triggered during parsing of a malformed DICOM file containing encapsulated PixelData fragments (compressed image data stored as multiple fragments). This vulnerability leads to a segmentation fault caused by an out-of-bounds memory access due to unsigned integer underflow in buffer indexing. It is exploitable via file input, simply opening a crafted malicious DICOM file is sufficient to trigger the crash, resulting in a denial-of-service condition.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	gdcm	sid	`3.0.24-14`	fixed
Debian	gdcm	forky	`3.0.24-14`	fixed
Debian	gdcm	trixie	`3.0.24-5`	vulnerable
Debian	gdcm	bookworm	`3.0.21-1`	vulnerable
Ubuntu	gdcm	pro	`2.2.3-2ubuntu3`	vulnerable
Ubuntu	gdcm	pro	`2.2.3-2ubuntu4`	vulnerable
Ubuntu	gdcm	pro	`2.2.4-1.1ubuntu1`	vulnerable
Ubuntu	gdcm	pro	`2.2.4-1.1ubuntu2`	vulnerable
Ubuntu	gdcm	pro	`2.2.4-1.1ubuntu3`	vulnerable
Ubuntu	gdcm	pro	`2.2.4-1.1ubuntu4`	vulnerable
Ubuntu	gdcm	pro	`2.2.4-1.1ubuntu4+esm1`	vulnerable
Ubuntu	gdcm	16.04	`2.4.4-4`	vulnerable
Ubuntu	gdcm	16.04	`2.4.4-4build1`	vulnerable
Ubuntu	gdcm	16.04	`2.4.4-4ubuntu1`	vulnerable
Ubuntu	gdcm	16.04	`2.6.1-3`	vulnerable
Ubuntu	gdcm	16.04	`2.6.2-1`	vulnerable
Ubuntu	gdcm	16.04	`2.6.2-2`	vulnerable
Ubuntu	gdcm	16.04	`2.6.2-3`	vulnerable
Ubuntu	gdcm	16.04	`2.6.3-1`	vulnerable
Ubuntu	gdcm	16.04	`2.6.3-1ubuntu1`	vulnerable
Ubuntu	gdcm	16.04	`2.6.3-2ubuntu1`	vulnerable
Ubuntu	gdcm	16.04	`2.6.3-3ubuntu1`	vulnerable
Ubuntu	gdcm	16.04	`2.6.3-3ubuntu3`	vulnerable
Ubuntu	gdcm	18.04	`2.8.2-3build1`	vulnerable
Ubuntu	gdcm	18.04	`2.8.3-1`	vulnerable
Ubuntu	gdcm	18.04	`2.8.4-1`	vulnerable
Ubuntu	gdcm	18.04	`2.8.4-1build2`	vulnerable
Ubuntu	gdcm	20.04	`2.8.8-9ubuntu4`	vulnerable
Ubuntu	gdcm	20.04	`2.8.8-9ubuntu5`	vulnerable
Ubuntu	gdcm	20.04	`3.0.4-2`	vulnerable
Ubuntu	gdcm	20.04	`3.0.4-2build1`	vulnerable
Ubuntu	gdcm	20.04	`3.0.4-2ubuntu1`	vulnerable
Ubuntu	gdcm	20.04	`3.0.5-1ubuntu1`	vulnerable
Ubuntu	gdcm	20.04	`3.0.5-1.1ubuntu1`	vulnerable
Ubuntu	gdcm	20.04	`3.0.5-1.1ubuntu2`	vulnerable
Ubuntu	gdcm	22.04	`3.0.8-2`	vulnerable
Ubuntu	gdcm	22.04	`3.0.10-1`	vulnerable
Ubuntu	gdcm	22.04	`3.0.10-1build2`	vulnerable
Ubuntu	gdcm	24.04	`3.0.21-2`	vulnerable
Ubuntu	gdcm	24.04	`3.0.22-1`	vulnerable
Ubuntu	gdcm	24.04	`3.0.22-2build1`	vulnerable
Ubuntu	gdcm	24.04	`3.0.22-2build2`	vulnerable
Ubuntu	gdcm	24.04	`3.0.22-2.1build1`	vulnerable
Ubuntu	gdcm	24.04	`3.0.22-2.1build2`	vulnerable
Ubuntu	gdcm	24.04	`3.0.22-2.1ubuntu1`	vulnerable
Ubuntu	gdcm	25.10	`3.0.24-5ubuntu2`	vulnerable
Ubuntu	gdcm	25.10	`3.0.24-5ubuntu3`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	gdcm	source	sid	`3.0.24-11`	not yet assigned	Not reported	[1122862]
Debian	gdcm	source	forky	`3.0.24-11`	not yet assigned	Not reported	[1122862]
Debian	gdcm	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1122862]
Debian	gdcm	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1122862]

[Debian bug #1122862]

Notes

[trixie] gdcm: Minor issue [bookworm] gdcm: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[gdcm-doc]Affected
Source package: [gdcm]
Details (2)
- 3.0.21-1 · all · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
- 3.0.21-1 · all · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
[libgdcm3.0]Affected
Source package: [gdcm]
Details (2)
- 3.0.21-1 · amd64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
- 3.0.21-1 · arm64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
[libgdcm-cil]Affected
Source package: [gdcm]
Details (2)
- 3.0.21-1 · amd64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
- 3.0.21-1 · arm64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
[libgdcm-dev]Affected
Source package: [gdcm]
Details (2)
- 3.0.21-1 · amd64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
- 3.0.21-1 · arm64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
[libgdcm-java]Affected
Source package: [gdcm]
Details (2)
- 3.0.21-1 · amd64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
- 3.0.21-1 · arm64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
[libgdcm-tools]Affected
Source package: [gdcm]
Details (2)
- 3.0.21-1 · amd64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
- 3.0.21-1 · arm64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
[libvtkgdcm-9.1]Affected
Source package: [gdcm]
Details (2)
- 3.0.21-1 · amd64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
- 3.0.21-1 · arm64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
[libvtkgdcm-dev]Affected
Source package: [gdcm]
Details (2)
- 3.0.21-1 · amd64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
- 3.0.21-1 · arm64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
[libvtkgdcm-tools]Affected
Source package: [gdcm]
Details (2)
- 3.0.21-1 · amd64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
- 3.0.21-1 · arm64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
[python3-gdcm]Affected
Source package: [gdcm]
Details (2)
- 3.0.21-1 · amd64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
- 3.0.21-1 · arm64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
[python3-vtkgdcm]Affected
Source package: [gdcm]
Details (2)
- 3.0.21-1 · amd64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12
- 3.0.21-1 · arm64 · bookworm
  Affected
  dsa · gdcm · debian · bookworm; dsa · gdcm · debian · 12

[Debian 13 (Trixie)]

[gdcm-doc]Affected
Source package: [gdcm]
Details (2)
- 3.0.24-5 · all · trixie
  Affected
  dsa · gdcm · debian · 13
- 3.0.24-5 · all · trixie
  Affected
  dsa · gdcm · debian · 13
[libgdcm3.0t64]Affected
Source package: [gdcm]
Details (2)
- 3.0.24-5+b3 · amd64 · trixie
  Affected
  dsa · gdcm · debian · 13
- 3.0.24-5+b3 · arm64 · trixie
  Affected
  dsa · gdcm · debian · 13
[libgdcm-dev]Affected
Source package: [gdcm]
Details (2)
- 3.0.24-5+b3 · amd64 · trixie
  Affected
  dsa · gdcm · debian · 13
- 3.0.24-5+b3 · arm64 · trixie
  Affected
  dsa · gdcm · debian · 13
[libgdcm-java]Affected
Source package: [gdcm]
Details (2)
- 3.0.24-5+b3 · amd64 · trixie
  Affected
  dsa · gdcm · debian · 13
- 3.0.24-5+b3 · arm64 · trixie
  Affected
  dsa · gdcm · debian · 13
[libgdcm-tools]Affected
Source package: [gdcm]
Details (2)
- 3.0.24-5+b3 · amd64 · trixie
  Affected
  dsa · gdcm · debian · 13
- 3.0.24-5+b3 · arm64 · trixie
  Affected
  dsa · gdcm · debian · 13
[libvtkgdcm-9.1t64]Affected
Source package: [gdcm]
Details (2)
- 3.0.24-5+b3 · amd64 · trixie
  Affected
  dsa · gdcm · debian · 13
- 3.0.24-5+b3 · arm64 · trixie
  Affected
  dsa · gdcm · debian · 13
[libvtkgdcm-dev]Affected
Source package: [gdcm]
Details (2)
- 3.0.24-5+b3 · amd64 · trixie
  Affected
  dsa · gdcm · debian · 13
- 3.0.24-5+b3 · arm64 · trixie
  Affected
  dsa · gdcm · debian · 13
[libvtkgdcm-tools]Affected
Source package: [gdcm]
Details (2)
- 3.0.24-5+b3 · amd64 · trixie
  Affected
  dsa · gdcm · debian · 13
- 3.0.24-5+b3 · arm64 · trixie
  Affected
  dsa · gdcm · debian · 13
[python3-gdcm]Affected
Source package: [gdcm]
Details (2)
- 3.0.24-5+b3 · amd64 · trixie
  Affected
  dsa · gdcm · debian · 13
- 3.0.24-5+b3 · arm64 · trixie
  Affected
  dsa · gdcm · debian · 13

Next results

Observed: Oct 24, 2026, 8:18:17 AM UTC

References

[CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]