CVE-2026-19628 in Security Center
Summary
by MITRE • 08/14/2026
A command injection vulnerability exists in Tenable Security Center. An authenticated administrator could modify application configuration values to achieve arbitrary command execution on the underlying operating system when specific backend operations are triggered.
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Analysis
by VulDB Data Team • 08/14/2026
This vulnerability represents a critical command injection flaw within Tenable Security Center that enables authenticated administrative users to escalate privileges and execute arbitrary commands on the underlying operating system. The vulnerability stems from insufficient input validation and sanitization mechanisms within the application's configuration management subsystem, allowing maliciously crafted inputs to be interpreted as executable commands rather than mere configuration parameters. When specific backend operations are triggered by the modified configuration values, the system processes these inputs without proper security controls, creating an attack surface that directly compromises the host operating system.
The technical implementation of this vulnerability aligns with CWE-77, which describes command injection flaws where untrusted data is incorporated into system commands without adequate sanitization or validation. Attackers exploiting this weakness can manipulate configuration settings through authenticated administrative interfaces to inject malicious shell commands that execute with the privileges of the application process. The operational impact extends beyond simple privilege escalation as it provides adversaries with complete control over the underlying operating system, potentially enabling lateral movement, data exfiltration, and persistent access to the network infrastructure. This vulnerability directly maps to ATT&CK technique T1059.001 for command and scripting interpreter, specifically shell commands, and T1566.001 for credential access through legitimate credentials.
The exploitation requires an authenticated administrative account, which significantly reduces the attack surface compared to vulnerabilities requiring unauthenticated access. However, the elevated privileges associated with administrative accounts make this vulnerability particularly dangerous as it allows attackers to bypass many traditional security controls and execute commands that would otherwise be restricted. The backend operations that trigger this vulnerability typically involve configuration parsing or application initialization processes where user-supplied values are directly incorporated into system calls without proper parameterization or command escaping mechanisms. Organizations utilizing Tenable Security Center face substantial risk from this vulnerability as it can be leveraged to establish persistent backdoors, exfiltrate sensitive data, or disrupt critical security operations.
Mitigation strategies should prioritize immediate patching of affected systems through official vendor releases and security updates. Network segmentation and access control measures can help limit the impact if exploitation occurs, while monitoring for unusual command execution patterns in system logs may aid in detecting potential attacks. Regular security assessments and privileged account monitoring are essential to identify unauthorized administrative activities that could indicate successful exploitation attempts. Additionally, implementing proper input validation and output encoding mechanisms within the application's configuration management components would prevent similar vulnerabilities from emerging in future versions of the software.