CVE-2026-60659
Summary
by MITRE • 07/22/2026
Vulnerability in the Oracle Solaris product of Oracle Systems (component: Filesystems). The supported version that is affected is 11.4. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Solaris executes to compromise Oracle Solaris. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Solaris accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Solaris. CVSS 3.1 Base Score 7.1 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H).
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Analysis
by VulDB Data Team • 07/22/2026
This vulnerability resides within the filesystem component of Oracle Solaris version 11.4, representing a significant security weakness that can be exploited by attackers with minimal privileges. The flaw exists at the operating system level and specifically targets the underlying filesystem implementation, making it particularly dangerous given that it can be triggered by users who already have basic login access to the system. The vulnerability's exploitability score of 7.1 on the CVSS scale indicates a substantial risk level, as it provides attackers with the capability to compromise critical system data and potentially cause complete system downtime.
The technical nature of this vulnerability allows for unauthorized modification of filesystem contents, enabling attackers to create, delete, or alter critical data accessible through the Solaris filesystem. This represents a fundamental breach of data integrity principles where an attacker with low privileges can manipulate system files and user data without proper authorization. The attack vector requires local access to the system, meaning that an attacker must already have some level of login capability, but this is often achievable through various initial compromise techniques or by leveraging other vulnerabilities in the system environment.
The impact assessment reveals severe consequences for both data integrity and system availability, with CVSS scores indicating high potential damage. Attackers can cause complete denial of service conditions that result in system hangs or frequent crashes that make the operating system unusable. This dual impact on integrity and availability means that an attacker could simultaneously corrupt critical system files while also rendering the system inoperable, creating both data compromise and operational disruption scenarios. The vulnerability's potential for causing repeated system crashes aligns with attack patterns documented in the mitre attack framework where local privilege escalation and denial of service are common tactical objectives.
The configuration and deployment of Oracle Solaris 11.4 systems typically involves multiple filesystem layers and access controls that this vulnerability can bypass, making it particularly dangerous in enterprise environments where data integrity and system uptime are critical. Organizations running these systems face the risk of unauthorized data manipulation, which could include compromising sensitive user information, system configuration files, or application data. The vulnerability's characteristics align with CWE-264, which addresses permissions, privileges, and access controls in software systems, demonstrating how filesystem-level weaknesses can lead to broader security breaches.
Mitigation strategies for this vulnerability should focus on immediate patch management and operational hardening measures. Oracle typically releases security patches that address specific filesystem vulnerabilities, and organizations must implement these updates promptly to protect against exploitation. System administrators should also consider implementing additional monitoring controls around filesystem access patterns and unauthorized modifications to detect potential exploitation attempts. Network segmentation and principle of least privilege enforcement can help limit the impact if an attacker does gain local access, while regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in the broader system infrastructure. The vulnerability's classification as a local privilege escalation issue suggests that additional defensive measures such as mandatory access controls and enhanced logging mechanisms may be necessary to provide comprehensive protection against this specific threat vector.