CVE-2017-3289 in Java SE
Summary
by MITRE
Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE (subcomponent: Hotspot). Supported versions that are affected are Java SE: 7u121 and 8u112; Java SE Embedded: 8u111. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Java SE, Java SE Embedded, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Java SE, Java SE Embedded. 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 9.6 (Confidentiality, Integrity and Availability impacts).
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Analysis
by VulDB Data Team • 05/15/2026
The vulnerability identified as CVE-2017-3289 represents a critical security flaw within Oracle Java SE and Java SE Embedded platforms, specifically within the Hotspot component responsible for runtime execution and optimization. This vulnerability affects Java SE versions 7u121 and 8u112, as well as Java SE Embedded version 8u111, making it a widespread concern across multiple Java deployment scenarios. The flaw operates at the core of Java's security architecture, specifically targeting the runtime environment where code execution occurs, potentially allowing attackers to bypass fundamental security boundaries that protect against malicious code execution.
The technical nature of this vulnerability stems from insufficient validation mechanisms within the Hotspot JVM that processes Java bytecode and native code execution. Attackers can exploit this weakness through network-based protocols without requiring authentication, making it particularly dangerous for environments where untrusted code is executed within sandboxed Java applications. The vulnerability's classification as easily exploitable indicates that the attack surface is broad and that minimal prerequisites are required for successful exploitation. The attack vector specifically targets Java Web Start applications and applets that run in sandboxed environments, where users might inadvertently execute malicious code from untrusted sources.
The operational impact of CVE-2017-3289 extends beyond immediate system compromise, as successful exploitation can result in complete takeover of affected Java environments. This means that attackers can gain full control over systems running vulnerable Java versions, potentially leading to data exfiltration, system manipulation, and further lateral movement within network environments. The vulnerability's ability to significantly impact additional products occurs because Java applications often serve as foundational components in enterprise environments, making the compromise of a single Java installation potentially devastating for entire organizational infrastructures. The CVSS v3.0 base score of 9.6 reflects the high severity and the comprehensive impact across confidentiality, integrity, and availability domains.
The vulnerability's applicability to client-side Java deployments where sandboxed applications execute untrusted code from the internet creates a particularly dangerous scenario for end users and organizations. This affects typical client environments where users might encounter malicious Java applets or Web Start applications through web browsing or email attachments. The requirement for human interaction indicates that social engineering or phishing attacks could be employed to successfully exploit this vulnerability, making it more challenging to defend against through traditional network security measures. Organizations must understand that this vulnerability does not affect server-side Java deployments running only trusted code, but rather specifically targets client environments where security boundaries are less rigid.
Security mitigations for CVE-2017-3289 primarily focus on immediate patching and updating of affected Java installations to the latest supported versions. Organizations should implement strict Java deployment policies that minimize the execution of untrusted code, particularly within sandboxed environments. Network segmentation and application whitelisting can provide additional protective layers, while monitoring for suspicious Java-related network activity can help detect exploitation attempts. The vulnerability aligns with CWE-248, which addresses the exposure of an exception to a calling function, and relates to ATT&CK technique T1059.007 for Java-based command and control communications. Regular security assessments and vulnerability scanning should be implemented to identify and remediate affected systems, as the vulnerability's impact is amplified when Java applications are used in environments where users interact with potentially malicious web content.
This vulnerability demonstrates the ongoing challenges in Java security management and highlights the importance of maintaining up-to-date security patches across all Java installations. The complexity of Java's runtime environment and the variety of deployment scenarios make comprehensive protection difficult, requiring organizations to implement layered security approaches that address both network-level protections and application-level security controls. The vulnerability's classification as a zero-day threat in many environments underscores the critical need for proactive security measures and rapid response capabilities when new Java vulnerabilities are discovered and published.