CVE-2020-14803 Information disclosure in GraalVM Enterprise Edition

What is CVE-2020-14803?

CVE-2020-14803 is a medium-severity vulnerability in Debian Debian Linux, published on 21 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Vulnerability in the Java SE product of Oracle Java SE (component: Libraries). Supported versions that are affected are Java SE: 11.0.8 and 15. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Java SE 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 does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

Which versions are affected by CVE-2020-14803?

3 open source packages ship an affected version, including java, java-min and jre. It affects 19 products.

Products include Debian Debian Linux, Netapp 7-Mode Transition Tool, Netapp Active Iq Unified Manager, Netapp E-Series Santricity Os Controller, Netapp E-Series Santricity Storage Manager, Netapp E-Series Santricity Web Services Proxy and 13 more.

How do I fix CVE-2020-14803?

Upgrade java to a fixed version for your release line: 11.0.9 or 15.0.1.

Is CVE-2020-14803 being exploited?

There is no known exploitation of CVE-2020-14803 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-java-2020-14803, BIT-java-min-2020-14803, BIT-jre-2020-14803, CLEANSTART-2026-KV71136, CLEANSTART-2026-ZS70036, DEBIAN-CVE-2020-14803 and 10 more.