CVE-2017-3272 in Java SE
Summary
by MITRE
Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE (subcomponent: Libraries). Supported versions that are affected are Java SE: 6u131, 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-2017-3272 represents a critical security flaw within Oracle Java SE and Java SE Embedded platforms, specifically affecting the Libraries subcomponent. This vulnerability manifests in versions Java SE 6u131, 7u121, and 8u112, alongside Java SE Embedded 8u111, making it a widespread concern across multiple Java runtime environments. The flaw operates at a fundamental level within the Java security architecture, creating a pathway for attackers to bypass the sandbox mechanisms that typically protect users from malicious code execution. The CVSS v3.0 base score of 9.6 indicates a severe impact level, with scores reflecting significant concerns across confidentiality, integrity, and availability domains, demonstrating the comprehensive nature of potential compromise.
The technical exploitation of this vulnerability occurs through network-based attacks that require minimal authentication requirements, making it particularly dangerous for environments where users interact with untrusted code sources. Attackers can leverage multiple protocols to deliver malicious payloads that exploit the underlying flaw in Java's security model. The vulnerability's design allows for successful compromise even when the target system operates within a sandboxed environment, which is typically considered a protective measure against malicious code execution. This weakness specifically impacts Java deployments in client environments where Web Start applications or applets are executed, creating an attack surface that extends beyond the immediate Java runtime environment. The vulnerability's operational characteristics align with CWE-248, which addresses "Exception Handling Errors" and specifically relates to the improper handling of exceptions within Java's security framework.
The attack scenario requires human interaction from individuals other than the attacker, indicating that social engineering or user deception plays a significant role in successful exploitation. However, once the initial compromise occurs, the vulnerability can lead to complete takeover of the affected Java SE or Java SE Embedded systems. This takeover capability extends beyond just the immediate Java environment, potentially affecting additional products that rely on or interact with these Java deployments. The security implications are particularly severe because the vulnerability targets the core security mechanisms that protect against untrusted code execution, essentially undermining the fundamental security model that Java implements. The attack vectors are particularly concerning in environments where users regularly execute code from untrusted sources, such as web applications or downloaded content.
Organizations should implement immediate mitigations including updating to patched versions of Java SE and Java SE Embedded, as well as restricting network access to Java applications where possible. System administrators should consider disabling Java applets and Web Start applications in browsers, particularly in environments where these technologies are not essential for business operations. The mitigation strategy should also include network segmentation to limit the potential impact of successful exploitation attempts. Security monitoring should be enhanced to detect unusual network activity that might indicate exploitation attempts, particularly focusing on protocols that could be leveraged to deliver malicious Java applets or Web Start applications. Implementation of the principle of least privilege should be enforced, ensuring that Java applications run with minimal required permissions and that system administrators maintain strict control over Java deployment configurations. Organizations should also consider implementing application whitelisting policies that prevent execution of untrusted Java code, thereby reducing the attack surface and limiting the effectiveness of exploitation attempts targeting this vulnerability.