CVE-2025-30749

Oracle · Oracle Multiple Products

A high-severity vulnerability has been discovered in a core graphics component of Oracle Java SE and GraalVM.

Executive summary

A high-severity vulnerability has been discovered in a core graphics component of Oracle Java SE and GraalVM. An attacker could exploit this flaw by tricking a user or a server into processing a specially crafted file, potentially allowing the attacker to execute malicious code and compromise the confidentiality, integrity, and availability of the affected system.

Vulnerability

The vulnerability exists within the 2D component of Oracle Java, which is responsible for processing and rendering two-dimensional graphics and images. An attacker can craft a malicious Java application, applet, or even a manipulated image file that, when processed by the vulnerable 2D library, triggers an exploitable condition. This could lead to a buffer overflow or memory corruption, enabling the attacker to execute arbitrary code with the same privileges as the Java Virtual Machine (JVM) process.

Business impact

This vulnerability is rated as High severity with a CVSS score of 8.1. A successful exploit could have a significant business impact, as Java is a foundational technology for countless enterprise applications, web servers, and backend systems. Potential consequences include the theft of sensitive data, unauthorized modification of critical business information, or a complete denial of service of the affected application. This poses a direct risk to business operations, customer data, and corporate reputation, potentially leading to financial loss and regulatory non-compliance.

Remediation

Immediate Action: The primary remediation is to apply the security updates released by Oracle across all affected systems immediately. After patching, system administrators should actively monitor for any signs of post-remediation exploitation attempts and meticulously review system and application access logs for any anomalous activity that occurred prior to the patch deployment.

Proactive Monitoring: Organizations should configure monitoring to detect unusual behavior related to Java processes. This includes looking for unexpected child processes spawned by the JVM, anomalous network connections to unknown domains, or a spike in errors or crashes related to the Java 2D library in application logs. Intrusion Detection Systems (IDS) should be updated with signatures to detect attempts to exploit this vulnerability.

Compensating Controls: If immediate patching is not feasible, organizations should implement compensating controls. These include restricting the execution of untrusted Java code, employing application whitelisting to ensure only approved applications can run, and using network segmentation to isolate critical systems and limit the potential lateral movement of an attacker should a compromise occur.

Exploitation status

Public Exploit Available: false

Analyst recommendation

Given the high CVSS score and the ubiquity of Java in enterprise environments, this vulnerability represents a significant risk. Although there is no evidence of active exploitation at this time, organizations should not delay action. We strongly recommend that all system owners identify and prioritize patching for all systems running affected versions of Oracle Java SE and GraalVM. Remediation efforts should focus first on internet-facing systems and critical internal servers to mitigate the most immediate threats to the organization.