CVE-2023-21954: Debian Linux

Medium severity, CVSS 5.9. EPSS: 1.4% chance of exploitation in the next 30 days.

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Hotspot). Supported versions that are affected are Oracle Java SE: 8u361, 8u361-perf, 11.0.18, 17.0.6; Oracle GraalVM Enterprise Edition: 20.3.9, 21.3.5 and 22.3.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Java SE, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability can also be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. CVSS 3.1 Base Score 5.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).

Affected products

  • Debian Debian Linux: version 10.0 only; version 11.0 only; version 12.0 only
  • Netapp 7-Mode Transition Tool: affected versions not specified
  • Netapp Brocade San Navigator: affected versions not specified
  • Netapp Cloud Insights Acquisition Unit: affected versions not specified
  • Netapp Cloud Insights Storage Workload Security Agent: affected versions not specified
  • Netapp Oncommand Insight: affected versions not specified
  • Oracle Graalvm: version 20.3.9 only; version 21.3.5 only; version 22.3.1 only
  • Oracle JDK: version 1.8.0 only; version 11.0.18 only; version 17.0.6 only
  • Oracle JRE: version 1.8.0 only; version 11.0.18 only; version 17.0.6 only
  • Oracle Openjdk: before 8 (fixed in 8); from 11, up to and including 11.0.18; from 17, up to and including 17.0.6; version 8 only; version 20 only

Published 2023-04-18. Last modified 2026-06-17.