CVE-2026-83381
Awaiting Analysis Awaiting Analysis - Queue

Memory Corruption in Oracle Java SE

Publication date: 2026-10-20

Last updated on: 2026-10-27

Assigner: Oracle

Description
Vulnerability in Oracle Java SE (component: Security). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE accessible data as well as unauthorized read access to a subset of Oracle Java SE accessible data. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also 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. CVSS 3.1 Base Score 4.8 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N).

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-10-20
Last Modified
2026-10-27
Generated
2026-11-10
AI Q&A
2026-10-21
EPSS Evaluated
2026-11-08
NVD
CVE-2026-83381
EUVD
EUVD-2026-106299

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This is a vulnerability in Oracle Java SE's Security component affecting multiple versions including 8u503, 11.0.32.1, 17.0.20.1, and others. It allows unauthenticated attackers with network access to potentially compromise the system through multiple protocols. Successful exploitation could lead to unauthorized data access or modification.

Detection Guidance

This vulnerability is related to Oracle Java SE and requires checking installed Java versions and configurations. Use commands like 'java -version' to verify installed versions and compare them against affected versions (8u503, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27). Inspect network traffic for suspicious API calls to Java components.

Impact Analysis

If exploited, this vulnerability could allow attackers to read or modify some of your Oracle Java SE data without authentication. This is especially risky for systems running untrusted Java code like web apps or applets that rely on Java's sandbox for security.

Compliance Impact

This vulnerability allows unauthorized read and limited write access to Oracle Java SE data, which could lead to exposure of sensitive information. This may violate GDPR's data protection requirements for confidentiality and integrity, and HIPAA's safeguards for protected health information if exploited.

Mitigation Strategies

Update affected Oracle Java SE versions to the latest patches provided by Oracle. Remove or restrict access to untrusted Java applications running in sandboxed environments. Monitor network traffic for unusual API calls or data access patterns.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-83381. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart

Security Radar

News mentioning this vulnerability
Loading related security news...