Vulnerability in Oracle Java SE (component: JavaFX). Supported versions that are affected are Oracle Java SE: 8u471-b50. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle 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 3.1 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N).

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Vulnerability in Oracle Java SE (component: JavaFX). Supported versions that are affected are Oracle Java     SE: 8u471-b50. Difficult to exploit vulnerability allows unauthenticated attacker with network access via     multiple protocols to compromise Oracle Java SE. Successful attacks require human interaction from a     person other than the attacker. Successful attacks of this vulnerability can result in unauthorized     update, insert or delete access to some of Oracle 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). (CVE-2026-21947)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of Java installed on the remote host is affected by multiple vulnerabilities as referenced in the January 2026 CPU advisory.
  - Vulnerability in Oracle Java SE (component: JavaFX (libxslt)). Supported versions that are affected are     Oracle Java SE: 8u471-b50. Difficult to exploit vulnerability allows unauthenticated attacker with network     access via multiple protocols to compromise Oracle Java SE. Successful attacks require human interaction     from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of     Oracle Java SE. (CVE-2025-7425)

  - Vulnerability in Oracle Java SE (component: JavaFX (WebKitGTK)). Supported versions that are affected are     Oracle Java SE: 8u471-b50. Difficult to exploit vulnerability allows unauthenticated attacker with network     access via multiple protocols to compromise Oracle Java SE. Successful attacks require human interaction     from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of     Oracle Java SE. (CVE-2025-43368)

  - Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of     Oracle Java SE (component: Security). Supported versions that are affected are Oracle Java SE: 8u471,     8u471-b50, 8u471-perf, 11.0.29, 17.0.17, 21.0.9, 25.0.1; Oracle GraalVM for JDK: 17.0.17 and 21.0.9; Oracle     GraalVM Enterprise Edition: 21.3.16. Easily exploitable vulnerability allows unauthenticated attacker with     network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM     Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a     hang or frequently repeatable crash (complete DOS) of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM     Enterprise Edition. (CVE-2026-21945)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Azul Zulu installed on the remote host is 6 prior to 6.77.0.12 / 7 prior to 7.83.0.12 / 8 prior to 8.91.0.12 / 11 prior to 11.85.12 / 17 prior to 17.63.12 / 21 prior to 21.47.14 / 25 prior to 25.31.14. It is, therefore, affected by multiple vulnerabilities as referenced in the 2026-01-20 advisory.

  - A flaw was found in how GLib's GString manages memory when adding data to strings. If a string is already     very large, combining it with more input can cause a hidden overflow in the size calculation. This makes     the system think it has enough memory when it doesn't. As a result, data may be written past the end of     the allocated memory, leading to crashes or memory corruption. (CVE-2025-6052)

  - A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations     can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of     service when processing crafted input. (CVE-2025-6021)

  - A flaw was found in libxslt where the attribute type, atype, flags are modified in a way that corrupts     internal memory management. When XSLT functions, such as the key() process, result in tree fragments, this     corruption prevents the proper cleanup of ID attributes. As a result, the system may access freed memory,     causing crashes or enabling attackers to trigger heap corruption. (CVE-2025-7425)

  - A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26,     iOS 26 and iPadOS 26. Processing maliciously crafted web content may lead to an unexpected Safari crash.
    (CVE-2025-43368)

  - In GStreamer through 1.26.1, the isomp4 plugin's qtdemux_parse_trak function may read past the end of a     heap buffer while parsing an MP4 file, possibly leading to information disclosure. (CVE-2025-47219)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
297729	Linux Distros Unpatched Vulnerability : CVE-2026-21947	Nessus	Misc.	Local	low
294870	Oracle Java SE Multiple Vulnerabilities (January 2026 CPU)	Nessus	Misc.	Local	medium
294803	Azul Zulu Java Multiple Vulnerabilities (2026-01-20)	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-21947

low

Tenable Plugins

low

medium

high