Red Hat Security Advisory: java-17-openjdk security update for RHEL 8.4
Affects Red Hat java-17-openjdkSource GCVE Database
Not known to be exploited.
Data as of 3 Nov 2026, 02:32 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
Exploitation evidence
Disclosed: evidence found.
CVE published 22 Jan 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
A security update is available from Red Hat for java-17-openjdk on RHEL 8.4 that addresses CVE-2025-21502 and updates the copy-jdk-configs package. Users should apply this update after ensuring all previously released errata are installed. Detailed update instructions are available from Red Hat's official documentation. Since the advisory confirms the availability of a fix, applying the update is the recommended mitigation.
Description
A security update for the java-17-openjdk packages on Red Hat Enterprise Linux 8.4 addresses a vulnerability identified as CVE-2025-21502, which involves enhanced array handling in the JDK. This update also includes bug fixes related to the copy-jdk-configs package used for configuration file transfers. The vulnerability has been rated with moderate security impact by Red Hat Product Security.