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
2025-12-12T20:48:57Z
Modified
2026-08-12T15:13:36Z
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 CVSS Calculator
Summary
Grassroots DICOM (GDCM) Out-of-bounds Write
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.

Database specific 
{
    "cna_assigner":  "icscert",
    "cwe_ids":  [
        "CWE-787"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/11xxx/CVE-2025-11266.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "last_affected":  "2.5.2"
                },
                {
                    "last_affected":  "4.0"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}
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
5829c95c8ac3afa9a3a3413675e948959c28a789
Fixed
2d66f14563fb5e32fd538744f6c9fe532ddd3526
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "3.0.24"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

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

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-11266.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "14508277489847140881181178753801618218",
            "length":  3699
        },
        "id":  "CVE-2025-11266-43ad6b8e",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/malaterre/gdcm/commit/5829c95c8ac3afa9a3a3413675e948959c28a789",
        "target":  {
            "file":  "Source/DataStructureAndEncodingDefinition/gdcmSequenceOfFragments.h",
            "function":  "ReadValue"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "3584130573601150422239773274888427963",
                "129083064797078902253931115651571964786",
                "181374703737913879988987868105724939906",
                "217182343023067882888346861882490080915"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2025-11266-abfd1296",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/malaterre/gdcm/commit/5829c95c8ac3afa9a3a3413675e948959c28a789",
        "target":  {
            "file":  "Source/DataStructureAndEncodingDefinition/gdcmSequenceOfFragments.h"
        }
    }
]
vanir_signatures_modified 
"2026-08-12T15:13:36Z"