cve-2025-27821
HIGH CVSS 7.3 opencve
Description
Out-of-bounds Write vulnerability in Apache Hadoop HDFS native client. This issue affects Apache Hadoop: from 3.2.0 before 3.4.2. Users are recommended to upgrade to version 3.4.2, which fixes the issue.
Timeline
- Published
- 2026-01-26 10:16 UTC
- Last Modified
- 2026-06-17
CVSS Details
CVSS details not available.
Affected Products
No product information available.
Weaknesses (CWE)
CVSS metrics
| Version | Base | Severity | Vector | Exploitability | Impact | Source |
|---|---|---|---|---|---|---|
| 3.1 | 7.3 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
nvd | ||
| 3.1 | 7.3 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
opencve | ||
| 3.1 | 7.3 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
vulnrichment |
References
No references available.
Linked Vulnerabilities
{
"advisories": [
{
"id": "GHSA-92cc-952p-v8rh",
"source": "ghsa",
"title": "Apache Hadoop HDFS Native Client has Out-of-bounds Write Vulnerability ",
"url": "https://github.com/advisories/GHSA-92cc-952p-v8rh"
}
],
"cve": "CVE-2025-27821",
"enrichment": {
"created": "2026-01-27T20:17:54.874909+00:00",
"updated": "2026-01-27T20:17:54.874935+00:00",
"vendors": [
"apache",
"apache$PRODUCT$hadoop"
]
},
"epss": {
"score": 0.00964
},
"mitre": {
"cpes": [],
"created": "2026-01-26T09:44:13.532000+00:00",
"description": "Out-of-bounds Write vulnerability in Apache Hadoop HDFS native client.\n\nThis issue affects Apache Hadoop: from 3.2.0 before 3.4.2.\n\nUsers are recommended to upgrade to version 3.4.2, which fixes the issue.",
"metrics": {
"cvssV2_0": {},
"cvssV3_0": {},
"cvssV3_1": {},
"cvssV4_0": {}
},
"mitre_repo_path": "cves/2025/27xxx/CVE-2025-27821.json",
"references": [
"https://lists.apache.org/thread/kwjhyyx0wl2z9b0mw0styjk0hhdbyplh"
],
"title": "HDFS native client: Out of bounds write in URI parser of native HDFS client",
"updated": "2026-01-26T18:13:19.241000+00:00",
"vendors": [],
"weaknesses": [
"CWE-787"
]
},
"nvd": {
"cpes": [
"cpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*"
],
"created": "2026-01-26T10:16:05.033000+00:00",
"description": "Out-of-bounds Write vulnerability in Apache Hadoop HDFS native client.\n\nThis issue affects Apache Hadoop: from 3.2.0 before 3.4.2.\n\nUsers are recommended to upgrade to version 3.4.2, which fixes the issue.",
"metrics": {
"cvssV2_0": {},
"cvssV3_0": {},
"cvssV3_1": {
"score": 7.3,
"vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
},
"cvssV4_0": {}
},
"nvd_repo_path": "2025/CVE-2025-27821.json",
"references": [
"http://www.openwall.com/lists/oss-security/2026/01/23/7",
"https://lists.apache.org/thread/kwjhyyx0wl2z9b0mw0styjk0hhdbyplh"
],
"title": null,
"updated": "2026-06-17T09:04:16.920000+00:00",
"vendors": [
"apache",
"apache$PRODUCT$hadoop"
],
"weaknesses": [
"CWE-787"
]
},
"opencve": {
"changes": [
{
"created": "2026-01-26T10:00:00+00:00",
"data": [
{
"details": {
"new": "Out-of-bounds Write vulnerability in Apache Hadoop HDFS native client.\n\nThis issue affects Apache Hadoop: from 3.2.0 before 3.4.2.\n\nUsers are recommended to upgrade to version 3.4.2, which fixes the issue.",
"old": null
},
"type": "description"
},
{
"details": {
"new": "HDFS native client: Out of bounds write in URI parser of native HDFS client",
"old": null
},
"type": "title"
},
{
"details": {
"added": [
"CWE-787"
],
"removed": []
},
"type": "weaknesses"
},
{
"details": {
"added": [
"https://lists.apache.org/thread/kwjhyyx0wl2z9b0mw0styjk0hhdbyplh"
],
"removed": []
},
"type": "references"
}
],
"id": "0608819a-f09b-4014-bee4-8ca2a01934b2"
},
{
"created": "2026-01-26T10:30:00+00:00",
"data": [
{
"details": {
"added": [
"http://www.openwall.com/lists/oss-security/2026/01/23/7"
],
"removed": []
},
"type": "references"
}
],
"id": "61fb7057-1036-4e75-a972-73e83019c140"
},
{
"created": "2026-01-26T19:15:00+00:00",
"data": [
{
"details": {
"added": {
"cvssV3_1": {
"score": 7.3,
"vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
},
"ssvc": {
"options": {
"Automatable": "yes",
"Exploitation": "none",
"Technical Impact": "partial"
},
"version": "2.0.3"
}
},
"removed": {},
"updated": {}
},
"type": "metrics"
}
],
"id": "3b2b3c9a-8fe6-49d1-afb7-9619f495af21"
},
{
"created": "2026-01-27T20:30:00+00:00",
"data": [
{
"details": [
"apache",
"apache$PRODUCT$hadoop"
],
"type": "first_time"
},
{
"details": {
"added": [
"apache",
"apache$PRODUCT$hadoop"
],
"removed": []
},
"type": "vendors"
}
],
"id": "4ac3f3b5-ac77-4b87-9b90-963d2bb72720"
},
{
"created": "2026-01-27T20:45:00+00:00",
"data": [
{
"details": {
"added": [
"cpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*"
],
"removed": []
},
"type": "cpes"
}
],
"id": "e32d9b1c-e960-4491-a8b8-3cbe32f24734"
}
],
"cpes": {
"data": [
"cpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*"
],
"providers": [
"nvd"
]
},
"created": {
"data": "2026-01-26T09:44:13.532000+00:00",
"provider": "mitre"
},
"description": {
"data": "Out-of-bounds Write vulnerability in Apache Hadoop HDFS native client.\n\nThis issue affects Apache Hadoop: from 3.2.0 before 3.4.2.\n\nUsers are recommended to upgrade to version 3.4.2, which fixes the issue.",
"provider": "mitre"
},
"metrics": {
"cvssV2_0": {
"data": {},
"provider": null
},
"cvssV3_0": {
"data": {},
"provider": null
},
"cvssV3_1": {
"data": {
"score": 7.3,
"vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
},
"provider": "vulnrichment"
},
"cvssV4_0": {
"data": {},
"provider": null
},
"epss": {
"data": {
"score": 0.00964
},
"provider": "first"
},
"kev": {
"data": {},
"provider": null
},
"ssvc": {
"data": {
"options": {
"Automatable": "yes",
"Exploitation": "none",
"Technical Impact": "partial"
},
"version": "2.0.3"
},
"provider": "vulnrichment"
},
"threat_severity": {
"data": null,
"provider": null
}
},
"references": {
"data": [
"http://www.openwall.com/lists/oss-security/2026/01/23/7",
"https://lists.apache.org/thread/kwjhyyx0wl2z9b0mw0styjk0hhdbyplh"
],
"providers": [
"mitre",
"nvd"
]
},
"title": {
"data": "HDFS native client: Out of bounds write in URI parser of native HDFS client",
"provider": "mitre"
},
"updated": {
"data": "2026-01-27T20:30:26.927000+00:00",
"provider": "nvd"
},
"vendors": {
"data": [
"apache",
"apache$PRODUCT$hadoop"
],
"providers": [
"nvd",
"enrichment"
]
},
"weaknesses": {
"data": [
"CWE-787"
],
"providers": [
"mitre",
"nvd"
]
}
},
"vulnrichment": {
"cpes": [],
"created": "2026-01-26T09:44:13.532000+00:00",
"description": "Out-of-bounds Write vulnerability in Apache Hadoop HDFS native client.\n\nThis issue affects Apache Hadoop: from 3.2.0 before 3.4.2.\n\nUsers are recommended to upgrade to version 3.4.2, which fixes the issue.",
"metrics": {
"cvssV2_0": {},
"cvssV3_0": {},
"cvssV3_1": {
"score": 7.3,
"vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
},
"cvssV4_0": {},
"kev": {},
"ssvc": {
"options": {
"Automatable": "yes",
"Exploitation": "none",
"Technical Impact": "partial"
},
"version": "2.0.3"
}
},
"references": [],
"title": "HDFS native client: Out of bounds write in URI parser of native HDFS client",
"updated": "2026-01-26T18:13:06.272000+00:00",
"vendors": [],
"vulnrichment_repo_path": "2025/27xxx/CVE-2025-27821.json",
"weaknesses": []
}
}
Enrichment data
Aggregated bundle (all enrichments)