CVE-2025-11266

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Source
https://cve.org/CVERecord?id=CVE-2025-11266
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-11266.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-11266
Downstream
Published
2025-12-12T21:15:51.653Z
Modified
2026-04-12T17:35:47.542140Z
Severity
  • 6.8 (Medium) CVSS_V4 - CVSS: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 CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Git / github.com/malaterre/gdcm

Affected ranges

Type
GIT
Repo
https://github.com/malaterre/gdcm
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
2d66f14563fb5e32fd538744f6c9fe532ddd3526
Type
GIT
Repo
https://github.com/malaterre/gdcm
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5829c95c8ac3afa9a3a3413675e948959c28a789

Affected versions

v2.*
v2.0.12
v2.0.16
v2.0.17
v2.0.18
v2.0.4
v2.0.5
v2.0.7
v3.*
v3.1.0
v3.2.0
v3.2.1

Database specific

vanir_signatures 
[
    {
        "id": "CVE-2025-11266-43ad6b8e",
        "target": {
            "function": "ReadValue",
            "file": "Source/DataStructureAndEncodingDefinition/gdcmSequenceOfFragments.h"
        },
        "signature_version": "v1",
        "source": "https://github.com/malaterre/gdcm/commit/5829c95c8ac3afa9a3a3413675e948959c28a789",
        "signature_type": "Function",
        "digest": {
            "function_hash": "14508277489847140881181178753801618218",
            "length": 3699.0
        },
        "deprecated": false
    },
    {
        "id": "CVE-2025-11266-abfd1296",
        "target": {
            "file": "Source/DataStructureAndEncodingDefinition/gdcmSequenceOfFragments.h"
        },
        "signature_version": "v1",
        "source": "https://github.com/malaterre/gdcm/commit/5829c95c8ac3afa9a3a3413675e948959c28a789",
        "signature_type": "Line",
        "digest": {
            "line_hashes": [
                "3584130573601150422239773274888427963",
                "129083064797078902253931115651571964786",
                "181374703737913879988987868105724939906",
                "217182343023067882888346861882490080915"
            ],
            "threshold": 0.9
        },
        "deprecated": false
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-11266.json"
vanir_signatures_modified 
"2026-04-12T17:35:47Z"