Is CVE-2026-64879 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-64879 being exploited in the wild.

How severe is CVE-2026-64879?

Critical severity, with a CVSS score of 9.9, published 21 July 2026.

Which products and versions are affected?

Tenable, Inc. Security Center < 6.8.0.

Is there a fix for CVE-2026-64879?

A patch was published on 2026-07-21: Patch SC202607.1 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-64879 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-64879?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-64879: Tenable Security Center command injection in audit file upload

Q: Is there a fix for CVE-2026-64879?

A patch was published on 2026-07-21: Patch SC202607.1 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Q: How is CVE-2026-64879 attacked?

It is attacked over the network, in a network appliance.

Q: Am I affected by CVE-2026-64879?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-64879 · Severity: critical · CVSS 9.9 · Published 2026-07-21

Tenable Security Center, a platform used by organizations to manage and track security vulnerabilities, contains a critical flaw in its audit file upload feature. An attacker with basic user permissions can exploit this to take full control of the underlying server. This could lead to the theft of sensitive security data, disruption of vulnerability management operations, or a complete system takeover.

Quick answers

Is CVE-2026-64879 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-64879 being exploited in the wild.
How severe is CVE-2026-64879?: Critical severity, with a CVSS score of 9.9, published 21 July 2026.
Which products and versions are affected?: Tenable, Inc. Security Center < 6.8.0.
Is there a fix for CVE-2026-64879?: A patch was published on 2026-07-21: Patch SC202607.1 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-64879 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-64879?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A command injection vulnerability exists in Tenable Security Center due to improper sanitization of filenames during the audit file upload process. An authenticated attacker with low privileges can supply a crafted filename containing shell metacharacters, which are subsequently executed by the system during command execution. This allows for arbitrary code execution with the privileges of the application. The vulnerability affects versions prior to 6.8.0 and has been addressed in patch SC202607.1.

Affected products

Tenable, Inc. Security Center < 6.8.0

Timeline

2026-07-21: disclosed
2026-07-21: advisory
2026-07-21: patched: Patch SC202607.1 released

References

https://www.tenable.com/security/tns-2026-19

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