Skip to main content
CVE-2025-21502VulnerabilityPublished Updated

Red Hat Security Advisory: OpenJDK 21.0.6 Security Update for Portable Linux Builds

Affects Red Hat OpenJDK 21.0.6Source GCVE Database

0
Compare

Not known to be exploited.

Data as of 3 Nov 2026, 02:32 UTC

Severity
Medium

Rated by Threat Radar · No CVSS score from NVD or the CNA

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Jan 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2 Nov 2026.

What to do

AI-suggested

Red Hat has released OpenJDK 21.0.6 as an official fix for this vulnerability. Users should update to this version after applying all previously released errata relevant to their system. Detailed update instructions are available from Red Hat's documentation. No additional mitigation steps are indicated or necessary beyond applying this update.

Description

Red Hat has released an update for OpenJDK 21 (version 21.0.6) addressing a moderate security issue identified as CVE-2025-21502, which involves enhancements to array handling. This update replaces the previous version 21.0.5 and includes security and bug fixes as well as enhancements. No public exploit or detailed CVSS score is provided in the advisory.

References

Community reviews

Loading reviews…