CVE-2025-27821

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CVSS 3.1

7.3 high

EPSS

<1%p57

Published

Jan 26, 2026 (Jan 26, 2026)

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.

Vendors: apache
Products: hadoop
Weakness: CWE-787
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

NVD CVE.org GitHub PoCs EPSS (0.9%)

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