TI-2025-10314 Aliases CVE-2025-11266 GHSA-7qcj-ww2g-7w6j

Grassroots DICOM (GDCM) Out-of-bounds Write

LOW 29CWE-787Published 2025-12-12 · Updated 2026-01-20

Key facts

Attack vector: Local
Privileges required: None
User interaction: Active
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: Low · Low · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00146 3rd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Grassroots	DICOM (GDCM)	up to 3.0.24	—	No fix listed	CNA
NumFocus	SimpleITK	up to 2.5.2	—	No fix listed	CNA
medInria	medInria	up to 4.0	—	No fix listed	CNA

DICOM (GDCM) VendorGrassroots Affected up to 3.0.24 Fixed in — No fix listed CNA
SimpleITK VendorNumFocus Affected up to 2.5.2 Fixed in — No fix listed CNA
medInria VendormedInria Affected up to 4.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-02 Threatist record created from CVE-2025-11266
2026-10-03 Alias added: GHSA-7qcj-ww2g-7w6j

References

Other 3

TI-2026-03148 Grassroots DICOM Missing release of memory after effective lifetime CVSS 4.0HIGH 8.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences