Oracle October 2017 Patch Day.
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html#AppendixJAVA
http://www.oracle.com/technetwork/security-advisory/cpuoct2017verbose-3236627.html#JAVA

Vulnerability in the Java SE component of Oracle Java SE (subcomponent: Javadoc).  Supported versions that are affected are Java SE: 6u161, 7u151, 8u144 and  9. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Java SE.  Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Java SE, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of Java SE accessible data as well as  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 v3.0 Base Score 6.1 (Confidentiality and Integrity impacts).  CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).