UBUNTU-CVE-2025-6818 (CVE-2025-6818)
Vulnerability from osv_ubuntu – Published: 2025-06-28 16:15 – Updated: 2026-10-17 09:30 – Source website
VLAI
Details
A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5O__chunk_protect of the file /src/H5Ochunk.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.
Severity
7.8 (High)
N/A (UNKNOWN)
References
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"aliases": [],
"details": "A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5O__chunk_protect of the file /src/H5Ochunk.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.",
"id": "UBUNTU-CVE-2025-6818",
"modified": "2026-10-17T09:30:21Z",
"published": "2025-06-28T16:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2025-6818"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-6818"
},
{
"type": "REPORT",
"url": "https://github.com/HDFGroup/hdf5/issues/5573"
},
{
"type": "REPORT",
"url": "https://github.com/user-attachments/files/20623382/hdf5_crash_5.txt"
},
{
"type": "REPORT",
"url": "https://vuldb.com/?ctiid.314256"
},
{
"type": "REPORT",
"url": "https://vuldb.com/?id.314256"
},
{
"type": "REPORT",
"url": "https://vuldb.com/?submit.602326"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "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",
"type": "CVSS_V4"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2025-6818"
]
}
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- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.