CVE-2006-5616 in Linux
Summary
by MITRE
Multiple unspecified vulnerabilities in OpenPBS, as used in SUSE Linux 9.2 through 10.1, allow attackers to execute arbitrary code via unspecified vectors.
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Analysis
by VulDB Data Team • 04/25/2026
The vulnerability identified as CVE-2006-5616 affects OpenPBS, a widely deployed batch job scheduling system used in high-performance computing environments and enterprise Linux distributions including SUSE Linux 9.2 through 10.1. This vulnerability represents a critical security flaw that allows remote attackers to execute arbitrary code on affected systems, potentially compromising entire computational clusters and data processing infrastructure. OpenPBS serves as a central management system for batch job processing, making it a prime target for attackers seeking persistent access to computational resources.
The unspecified nature of the vulnerability vectors in CVE-2006-5616 indicates that multiple attack surfaces within the OpenPBS implementation were found to be exploitable, likely including buffer overflows, input validation failures, or privilege escalation mechanisms. These vulnerabilities typically arise from insufficient sanitization of user inputs, improper handling of network communications, or inadequate access controls within the job scheduling daemon processes. The lack of specific details in the original CVE description suggests that multiple distinct weaknesses were discovered, each potentially allowing different exploitation paths to achieve code execution privileges.
From an operational standpoint, successful exploitation of this vulnerability could enable attackers to gain full control over the affected OpenPBS systems, potentially leading to unauthorized job submission, data exfiltration, or disruption of computational services. In enterprise environments where OpenPBS manages critical batch processing workflows, such an attack could result in significant business disruption, data compromise, and potential financial losses. The impact extends beyond individual systems to entire cluster environments where multiple nodes may be coordinated through a single PBS master daemon.
The technical exploitation of these vulnerabilities aligns with common attack patterns documented in the MITRE ATT&CK framework, particularly in the execution and privilege escalation domains. Attackers could leverage these flaws to establish persistent backdoors, escalate privileges from regular user accounts to system-level access, or manipulate job scheduling to execute malicious payloads. The vulnerability characteristics suggest potential mappings to CWE categories including CWE-119 for memory corruption issues and CWE-20 for input validation problems, which are commonly found in distributed computing systems.
Organizations should prioritize immediate patching of affected OpenPBS installations and implement network segmentation to limit exposure of these critical systems. Security monitoring should focus on unusual job submission patterns, unauthorized access attempts, and network communications to suspicious external addresses. System administrators should also consider implementing additional security controls such as mandatory access controls, privilege separation, and regular security audits of job scheduling configurations to prevent exploitation of similar vulnerabilities in the future.