What is CVE-2026-64879?

CVE-2026-64879 is a critical-severity vulnerability in Tenable, Inc. Security Center, classified under OS Command Injection. CVSS score: 9.9/10. Published 2026-07-21.

How severe is CVE-2026-64879?

Critical severity. CVSS v3 base score is 9.9 out of 10.

RCE in Tenable, Inc. Security Center

CVE-2026-64879

A filename supplied during file upload is not properly sanitized before being used in system command execution, allowing an attacker to inject shell metacharacters and achieve command injection via the audit file upload functionality.

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Tenable, Inc. Security Center — versions 0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

vulnreport@tenable.com

Frequently asked questions

What is CVE-2026-64879?: CVE-2026-64879 is a critical-severity vulnerability in Tenable, Inc. Security Center, classified under OS Command Injection. CVSS score: 9.9/10. Published 2026-07-21.
How severe is CVE-2026-64879?: Critical severity. CVSS v3 base score is 9.9 out of 10.