CVE-2025-6856

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Source
https://cve.org/CVERecord?id=CVE-2025-6856
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-6856.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-6856
Downstream
Published
2025-06-29T09:31:05.927Z
Modified
2026-07-08T08:12:39.760288681Z
Severity
  • 1.9 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P CVSS Calculator
Summary
HDF5 H5FL.c H5FL__reg_gc_list use after free
Details

A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5FL__reggclist of the file src/H5FL.c. The manipulation leads to use after free. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6856.json",
    "cna_assigner": "VulDB",
    "cwe_ids": [
        "CWE-119",
        "CWE-416"
    ]
}
References

Affected packages

Git / github.com/hdfgroup/hdf5

Affected ranges

Type
GIT
Repo
https://github.com/hdfgroup/hdf5
Events
Introduced
7bf340440909d468dbb3cf41f0ea0d87f5050cea
Last affected
7bf340440909d468dbb3cf41f0ea0d87f5050cea
Database specific 
{
    "source": [
        "AFFECTED_FIELD",
        "CPE_STRING"
    ],
    "cpe": "cpe:2.3:a:hdfgroup:hdf5:1.14.6:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "1.14.6"
        },
        {
            "last_affected": "1.14.6"
        }
    ]
}

Affected versions

1.*
1.14.6
hdf5-1.*
hdf5-1.14.6
hdf5_1.*
hdf5_1.14.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-6856.json"