High severity · published Jul 21, 2026
CVE-2026-64881
Command Injection
8.8
CVSS
2.2%
EPSS
No
On KEV
Description
The audit file upload handler does not sanitize filenames, allowing shell metacharacters to flow into system command execution. This input validation failure enables command injection when chained with a related vulnerability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.2% · 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, Inc.
before 6.8.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64881
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-64881
Patch
https://www.tenable.com/security/tns-2026-19
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