Is CVE-2026-64881 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-64881 being exploited in the wild.

How severe is CVE-2026-64881?

High severity, with a CVSS score of 8.8, published 21 July 2026.

Which products and versions are affected?

Tenable, Inc. Security Center < 6.8.0.

Is there a fix for CVE-2026-64881?

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-2026-64881 attacked?

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

Am I affected by CVE-2026-64881?

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-2026-64881: Tenable Security Center command injection in audit file upload handler

Q: Is there a fix for CVE-2026-64881?

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-2026-64881 attacked?

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

Q: Am I affected by CVE-2026-64881?

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-2026-64881 · Severity: high · CVSS 8.8 · Published 2026-07-21

Tenable Security Center, a platform used for managing and prioritizing organizational cyber risk, contains a vulnerability in its audit file upload component. An attacker with low-level user access can upload files with specially crafted names to execute unauthorized commands on the underlying system. This could lead to a full system takeover, data theft, or disruption of security operations.

Quick answers

Is CVE-2026-64881 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-64881 being exploited in the wild.
How severe is CVE-2026-64881?: High severity, with a CVSS score of 8.8, published 21 July 2026.
Which products and versions are affected?: Tenable, Inc. Security Center < 6.8.0.
Is there a fix for CVE-2026-64881?: 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-2026-64881 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-64881?: 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

An OS command injection vulnerability (CWE-78) exists in Tenable Security Center's audit file upload handler. The component fails to properly sanitize filenames, allowing shell metacharacters to be passed directly into system command execution. While the vulnerability requires low-privileged authentication (PR:L), it can be chained with other flaws to achieve remote code execution on the host operating system. The issue affects versions prior to 6.8.0 and is 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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