CVE-2026-106126

CRITICAL 9.4

Published 2026-10-08 · Last modified 2026-10-08

A command injection vulnerability in the Active Directory Events Listener of Tenable Identity Exposure (SaaS) allows an authenticated, low-privileged attacker to execute arbitrary commands as SYSTEM on the PDCe.

ELEVATED IMPACT

Severe if exploited (CVSS 9.4), but no known exploitation and low modeled probability. Patch on a normal cadence.

Exploitation likelihood

2.2%chance of exploitation in 30 days · 82nd percentile

○ In CISA KEV ○ Catalogued PoC

Impact if exploited

9.4CVSS 4.0 · CRITICAL

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

What an attacker needs

✓Access: Reachable over the network — no local access needed
⚠Privileges: Requires a low-privilege account
✓User interaction: No user interaction needed
✓Complexity: No special conditions — reliably repeatable
✓Requirements: No special attack requirements

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

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Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Data snapshot: 2026-10-26T13:52:32.101Z

Affected

Vendors Tenable, Inc.

Products Tenable Identity Exposure (Saas)

Weakness (CWE)

CWE-78: Improper neutralization of special elements used in an OS command ('OS command injection')

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

References and research data (JSON)

All CVSS metrics

CRITICAL 9.9 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CRITICAL 9.4 v4.0 · CNA Primary
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CRITICAL 9.4 v4.0 · NVD Secondary
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CRITICAL 9.9 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References

Advisories

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-95207 ADVISORYEUVD · EUVD-2026-95207

Technical & other

https://www.tenable.com/security/tns-2026-27CVE record · tenable · Updated 2026-10-08T19:47:35.912Z
NVD · CVE-2026-106126 · Updated 2026-10-08T21:17:51.547

Sources: NVD · CVE.org · EPSS