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CVE-2026-64879

Tenable Security Center command injection

9.9 CRITICALEPSS 2.26%
  1. Published21 Jul 2026

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

Tenable Security Center≥ 6.6.0 ≤ 6.8.0

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2026-64879 being actively exploited?

CVE-2026-64879 is not in the CISA KEV catalog. Its EPSS exploit probability is 2.26%.

How severe is CVE-2026-64879?

CVE-2026-64879 has a CVSS 3.1 base score of 9.9, rated critical. EPSS estimates a 2.26% probability of exploitation.

Which products are affected by CVE-2026-64879?

Affected products include Tenable Security Center.

How do I fix CVE-2026-64879?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-64879 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.