CVE-2026-2630 in Security Center
Summary
by MITRE • 02/17/2026
A Command Injection vulnerability exists where an authenticated, remote attacker could execute arbitrary code on the underlying server where Tenable Security Center is hosted.
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Analysis
by VulDB Data Team • 02/18/2026
The vulnerability identified as CVE-2026-2630 represents a critical command injection flaw within Tenable Security Center, a widely deployed network security monitoring and vulnerability management platform. This vulnerability specifically affects the authentication and input validation mechanisms of the security center's web interface, creating a pathway for remote attackers who have already established valid credentials to escalate their privileges and execute arbitrary commands on the underlying server infrastructure. The flaw stems from insufficient sanitization of user-supplied input parameters that are subsequently passed to system commands without proper validation or escaping mechanisms.
From a technical perspective, the vulnerability manifests when authenticated users submit malicious input through specific API endpoints or web forms that interface with the security center's backend systems. The affected components likely process user input directly within shell command contexts, enabling attackers to inject additional commands that bypass normal execution boundaries. This type of vulnerability falls under the Common Weakness Enumeration category CWE-77, which specifically addresses Command Injection flaws where untrusted data is incorporated into shell commands without proper sanitization. The attack vector requires an authenticated session, meaning that adversaries must first compromise valid user credentials or exploit other authentication bypass mechanisms to reach the vulnerable functionality.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with complete control over the underlying server hosting Tenable Security Center. This elevated privilege level allows adversaries to manipulate security configurations, access sensitive data stored within the system, modify network security policies, and potentially establish persistence mechanisms for continued access. The vulnerability creates a significant risk for organizations relying on Tenable Security Center for critical security monitoring functions, as successful exploitation could compromise the integrity and confidentiality of the entire security infrastructure. Attackers could leverage this access to disable security controls, exfiltrate sensitive information, or use the compromised server as a launch point for further attacks within the network.
Organizations should implement immediate mitigations including applying vendor-provided patches, implementing network segmentation to limit access to security center components, and deploying additional monitoring controls to detect anomalous command execution patterns. The vulnerability aligns with ATT&CK technique T1059.001 for Command and Scripting Interpreter, specifically focusing on the execution of system commands through vulnerable interfaces. Security teams should also consider implementing web application firewalls, input validation controls, and regular security assessments to identify similar vulnerabilities across their security infrastructure. The incident highlights the critical importance of secure coding practices and proper input sanitization in security tools that process user-supplied data within privileged execution contexts, emphasizing the need for comprehensive security testing throughout the software development lifecycle.