CVE-2026-2630
Published: 17 February 2026
Summary
CVE-2026-2630 is a high-severity OS Command Injection (CWE-78) vulnerability. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation of Remote Services (T1210); ranked in the top 38.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly prevents command injection vulnerabilities by validating and sanitizing authenticated user inputs before they are processed by system commands.
Remediates the specific CVE-2026-2630 command injection flaw through timely identification, testing, and deployment of vendor patches.
Restricts the types, rates, and volumes of user inputs to the Tenable Security Center, reducing opportunities for command injection exploits.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The command injection vulnerability (CWE-78) allows low-privileged authenticated remote attackers to achieve arbitrary code execution on the Tenable Security Center server, directly enabling Exploitation of Remote Services (T1210) and Exploitation for Privilege Escalation (T1068).
NVD Description
A Command Injection vulnerability exists where an authenticated, remote attacker could execute arbitrary code on the underlying server where Tenable Security Center is hosted.
Deeper analysisAI
CVE-2026-2630 is a command injection vulnerability (CWE-78) in Tenable Security Center. Published on 2026-02-17, it carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). The flaw allows an authenticated remote attacker to execute arbitrary code on the underlying server hosting the Tenable Security Center instance.
An attacker with low privileges, such as an authenticated user, can exploit this vulnerability remotely over the network with low complexity and without requiring user interaction. Successful exploitation enables arbitrary code execution on the server, potentially leading to high impacts on confidentiality, integrity, and availability.
Tenable has issued advisory TNS-2026-06 addressing this vulnerability, available at https://www.tenable.com/security/tns-2026-06. Security practitioners should consult this advisory for details on patches and mitigation steps.
Details
- CWE(s)