Is CVE-2026-106126 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-106126 being exploited in the wild.

How severe is CVE-2026-106126?

Critical severity, with a CVSS score of 9.9, published 8 October 2026.

Which products and versions are affected?

Tenable Identity Exposure 3.125.0 and earlier.

How is CVE-2026-106126 attacked?

It is attacked over the network, in a hosted service.

Am I affected by CVE-2026-106126?

Check whether you run Tenable Identity Exposure at an affected version. 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-2026-106126: Tenable Identity Exposure command injection in Active Directory Events Listener

CVE-2026-106126 · Severity: critical · CVSS 9.9 · Published 2026-10-08

Tenable Identity Exposure is a SaaS platform that monitors Active Directory for security exposures. A command injection flaw in the Active Directory Events Listener component allows authenticated attackers with low privileges to execute arbitrary commands with system-level access on domain controllers, potentially compromising the entire Active Directory infrastructure.

Vendors: Tenable.

Quick answers

Is CVE-2026-106126 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-106126 being exploited in the wild.
How severe is CVE-2026-106126?: Critical severity, with a CVSS score of 9.9, published 8 October 2026.
Which products and versions are affected?: Tenable Identity Exposure 3.125.0 and earlier.
Is there a fix for CVE-2026-106126?: Yes: fixed in Identity Exposure 3.126.0. Until then: After upgrading to version 3.126.0, existing installations must run Register-TenableIOA.ps1 -Uninstall and reinstall the Active Directory Events Listener to fully resolve the issue. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-106126 attacked?: It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-106126?: Check whether you run Tenable Identity Exposure at an affected version. 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.

How to fix

Fixed in: Identity Exposure 3.126.0

After upgrading to version 3.126.0, existing installations must run Register-TenableIOA.ps1 -Uninstall and reinstall the Active Directory Events Listener to fully resolve the issue.

Technical details

The vulnerability is an OS command injection (CWE-78) in the Active Directory Events Listener of Tenable Identity Exposure SaaS. An authenticated, low-privileged attacker can inject commands that execute as SYSTEM on the PDC emulator via the network without user interaction. A fix requires upgrading to version 3.126.0 and reinstalling the listener with the Register-TenableIOA.ps1 script.

Affected products

Tenable Identity Exposure 3.125.0 and earlier

Timeline

2026-09-09: disclosed
2026-10-08: patched: Version 3.126.0 released

References

https://www.tenable.com/security/tns-2026-27

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