Critical severity · published Jul 21, 2026
CVE-2026-64879
Command Injection
9.9
CVSS
2.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)2.3% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SC
Security Center · Tenable
6.6.0 through 6.8.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64879
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-64879
Patch
https://www.tenable.com/security/tns-2026-19
More from Security Center
9.9
CVE-2026-19682
Command Injection
9.9
CVE-2026-19681
Command Injection
9.9
CVE-2026-19626
Remote Code Execution
9.9
CVE-2026-64878
Command Injection
8.8
CVE-2026-19679
Improper Input Validation