CVE-2025-27821

HighCVSS 7.3/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Weakness enumeration

CWE-787

Affected software

No affected versions have been published.

Timeline

Published
Jan 26, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2025-27821: High severity, CVSS 7.3 | Vulnix