Appsecure logo

CVE-2025-30754: Medium Vulnerability in Oracle GraalVM

A medium-severity vulnerability in Oracle GraalVM and Java SE allows unauthenticated network access via TLS. Organizations should prioritize patching to mitigate unauthorized data access.

MEDIUMCVSS 4.8 · Published July 15, 2025

Not a customer? See how AppSecure simulates real world attacks to protect your infrastructure.

Speak to Experts

CVE-2025-30754 is a medium-severity vulnerability affecting the Oracle GraalVM for JDK and Oracle Java SE. With a CVSS score of 4.8, this vulnerability poses a risk to organizations utilizing affected versions of these products. The vulnerability allows an unauthenticated attacker with network access via TLS to compromise the Oracle Java SE and GraalVM products, potentially leading to unauthorized access to sensitive data.

The affected versions include Oracle Java SE: 8u451, 11.0.27, 17.0.15, 21.0.7, and 24.0.1, as well as Oracle GraalVM for JDK: 17.0.15, 21.0.7, and 24.0.1. Organizations running Java deployments that load and run untrusted code, such as sandboxed Java Web Start applications and applets, are particularly at risk. Successful exploitation could allow unauthorized updates, inserts, or deletions of data, as well as unauthorized read access to some data.

Organizations should prioritize patching immediately to mitigate this vulnerability. The exploitation status indicates that there are currently no known exploits available, but the potential impact necessitates swift action to secure affected systems.

The vulnerability has been classified under CWE-284, indicating that it involves improper access control. This classification highlights the importance of stringent access controls in preventing unauthorized data access.

Vulnerability Details

The vulnerability in question affects the Oracle Java SE and Oracle GraalVM for JDK products, specifically within the JSSE component. As stated, the affected versions include Oracle Java SE: 8u451, 8u451-perf, 11.0.27, 17.0.15, 21.0.7, and 24.0.1; Oracle GraalVM for JDK: 17.0.15, 21.0.7, and 24.0.1; and Oracle GraalVM Enterprise Edition: 21.3.14.

The difficulty of exploiting this vulnerability is considered high; however, it still poses a significant risk as it allows unauthenticated attackers network access through TLS. The potential consequences of successful attacks can include unauthorized modifications and access to sensitive data.

The CVSS score of 4.8 indicates that the vulnerability has low impacts on confidentiality and integrity, with no impact on availability. Vectors such as 'AV:N' (Network), 'AC:H' (High), 'PR:N' (None), and 'UI:N' (None) highlight the conditions under which this vulnerability can be exploited.

Technical Analysis

The root cause of CVE-2025-30754 lies in the improper access control mechanisms within the JSSE component of affected Oracle products. Attackers may leverage this vulnerability through a network attack, particularly exploiting the TLS protocol to gain unauthorized access.

The attack complexity is classified as high, meaning that exploiting this vulnerability requires a significant level of skill and resources. Additionally, no privileges are required to exploit this vulnerability, and user interaction is not necessary, making it even more concerning for affected organizations.

The impact of this vulnerability is twofold. Confidentiality and integrity could be compromised, allowing unauthorized access and potential modification of sensitive data, while availability remains unaffected. Organizations should monitor for any signs of exploitation and take proactive steps to secure their environments.

Risk & Impact Analysis

The risk to organizations includes unauthorized access to sensitive data, which could have serious repercussions, especially in environments where untrusted code execution is common. The blast radius of this vulnerability is significant, particularly in organizations that deploy Java applications widely.

Given the CVSS score of 4.8, organizations should address this vulnerability in their priority patch cycle. Although it is not classified as critical, the potential for exploitation remains a concern, especially as untrusted code execution practices continue to be utilized in various applications.

Monitoring network traffic for unauthorized access attempts and ensuring strict controls around the execution of untrusted code can help mitigate the risks associated with this vulnerability. Organizations should also consider implementing additional security measures to strengthen their defenses.

Exploitation Status

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

The affected versions for this vulnerability include:

Oracle Java SE: 8u451, 11.0.27, 17.0.15, 21.0.7, 24.0.1.

Oracle GraalVM for JDK: 17.0.15, 21.0.7, 24.0.1.

Oracle GraalVM Enterprise Edition: 21.3.14.

Mitigation & Remediation

To mitigate the risks associated with CVE-2025-30754, organizations should prioritize patching by upgrading to the latest versions of the affected products. Oracle has released updates to address this vulnerability.

If immediate patching is not feasible, organizations should consider implementing workarounds, such as restricting access to untrusted code execution environments and enhancing monitoring for unauthorized access attempts.

For organizations looking to strengthen their security posture, it is advisable to engage in penetration testing to identify potential weaknesses in their infrastructure.

Detection Guidance

Organizations should monitor for the following indicators to detect potential exploitation of this vulnerability:

Suspicious network traffic patterns, particularly from untrusted sources.

Unauthorized access attempts to Java application environments.

AppSecure Threat Intelligence Insight

The long-term significance of CVE-2025-30754 lies in its demonstration of the continual need for robust access controls in software deployments. As applications increasingly rely on untrusted code execution, the potential for vulnerabilities to be exploited remains a critical concern.

Security teams should learn from this incident to enhance their threat modeling and application security strategies. Implementing security best practices, such as regular vulnerability assessments and code reviews, can significantly reduce exposure to similar vulnerabilities.

For organizations interested in improving their overall security posture, consider exploring our application security assessment services for tailored security solutions.

Organizations should also keep abreast of emerging threats and vulnerabilities, utilizing threat intelligence platforms to stay informed about the latest security trends and risks.

For further reading on vulnerability management and security best practices, consider our vulnerability management program design guidelines.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

Latest CVEs. Recently published vulnerabilities from the NVD database.

View all vulnerabilities
CVE IDSeverity
CVE-2025-65418HIGH
CVE-2025-65417MEDIUM
CVE-2025-65416MEDIUM
CVE-2025-65415MEDIUM
CVE-2025-61314HIGH

Protect Your Business with Hacker-Focused Approach.