CVE-2010-0091 in JRE
Summary
by MITRE
Unspecified vulnerability in the Java Runtime Environment component in Oracle Java SE and Java for Business 6 Update 18, 5.0 Update 23, and 1.4.2_25 allows remote attackers to affect confidentiality via unknown vectors, a different vulnerability than CVE-2010-0084.
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Analysis
by VulDB Data Team • 05/04/2026
The vulnerability identified as CVE-2010-0091 represents a critical security flaw within the Java Runtime Environment component of Oracle Java SE and Java for Business versions 6 Update 18, 5.0 Update 23, and 1.4.2_25. This unspecified vulnerability specifically targets the confidentiality aspect of the system, indicating that malicious actors could potentially access sensitive information without proper authorization. The vulnerability's classification as unspecified suggests that the exact technical mechanism remains undisclosed, which is common in early vulnerability reports where full details have not yet been publicly disclosed or analyzed by security researchers.
The technical flaw within the Java Runtime Environment component stems from inadequate security controls that allow remote attackers to exploit unknown vectors to compromise confidentiality. This weakness exists in the core runtime functionality that executes java applications, making it particularly dangerous as it affects the fundamental security architecture of the platform. The vulnerability's remote exploitability means that attackers do not require physical access or local privileges to carry out their attacks, significantly expanding the potential attack surface. The unspecified nature of the vectors indicates that the flaw could manifest through various attack paths including but not limited to memory corruption, improper input validation, or cryptographic weaknesses within the java runtime environment.
The operational impact of this vulnerability extends across multiple Java environments and versions, affecting organizations that rely on legacy Java implementations. The compromise of confidentiality could lead to exposure of sensitive data including personal information, business secrets, financial records, or proprietary code. Organizations running these specific Java versions face significant risk as attackers could potentially extract confidential information from running applications or system processes. The vulnerability's presence in multiple Java versions including the older 1.4.2_25 version indicates that the flaw has existed for an extended period, potentially allowing attackers to exploit it for prolonged periods without detection.
Security professionals should prioritize immediate mitigation efforts for systems running the affected Java versions, as the unspecified nature of the vulnerability suggests it may be actively exploited in the wild. The mitigation strategy should include immediate patching of all affected Java installations to the latest security updates provided by Oracle. Organizations should also implement network segmentation and monitoring to detect potential exploitation attempts, as the vulnerability's remote nature makes it particularly attractive to attackers. Additionally, the vulnerability aligns with attack patterns documented in the attack technique matrix under techniques that target application runtime environments, specifically those related to information disclosure and privilege escalation through runtime component exploitation.
This vulnerability demonstrates the critical importance of maintaining up-to-date security patches in enterprise environments, particularly for widely deployed components like Java Runtime Environments that form the foundation of numerous applications. The unspecified nature of the vulnerability also highlights the challenges faced by security teams in assessing risk when complete technical details are not available, emphasizing the need for comprehensive vulnerability management programs that include continuous monitoring and rapid response capabilities. The incident underscores the necessity for organizations to maintain detailed asset inventories and implement automated patch management systems to ensure all Java installations remain protected against known vulnerabilities.