External risk intelligence

ZoneMinder monitor name injection allows arbitrary command execution

CVE advisorySeverity: CRITICAL (CVSS 9.0)

CVE-2026-102608

ZoneMinder is a web-based software application designed for monitoring and surveillance. It is commonly deployed as a web interface or portal accessible over the network to manage video feeds and event archives, creating an internet-reachable surface in many standard deployment scenarios.

OS Command Injection

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This advisory concerns a critical vulnerability in ZoneMinder, a CCTV software application, that could allow unauthorized command execution. The vulnerability arises from how the software handles user-provided monitor names when exporting events, potentially enabling an attacker to run arbitrary commands on the affected server. The primary concern is confirming whether ZoneMinder is in use and if the specific export functionality is leveraged, as this could present a significant security risk.

Software flaw lets attackers run commands.
Critical flaw affects CCTV monitoring systems.
Confirm relevance and exposure of this system.

Attack Path

How an attacker could exploit the issue

An attacker can exploit this vulnerability by tricking a user with event viewing permissions into exporting events from a specially crafted monitor. This requires an authenticated user with permissions to create or edit monitors to first set a monitor's name to include shell metacharacters. When the events are then exported, these characters are improperly handled, allowing arbitrary command execution.

Requires authenticated user with monitor creation/editing.
Malicious monitor name triggers command injection.
Allows arbitrary command execution as web server.

Live Threat

Current exploitation, exposure, and threat context

When a user with specific permissions stores a monitor name containing shell metacharacters, and another user exports that monitor's events, the input can be used to execute arbitrary commands as the web server user. This could impact system data and service behavior.

System command execution.
Malicious input in monitor name.
Arbitrary commands run as web server.

Operational Fix

Recommended remediation, mitigation, and detection steps

The ZoneMinder application owner and infrastructure team are likely responsible for addressing this vulnerability. The first practical step is to identify all ZoneMinder instances, confirm their reachability and business criticality, and then locate the accountable owner to plan remediation based on risk.

ZoneMinder application owner.
Verify public exposure and criticality.
Plan remediation during maintenance window.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

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Frequently asked questions

What is ZoneMinder?

ZoneMinder is an open-source software suite designed for video surveillance and CCTV management. It provides a web-based interface that allows users to monitor camera feeds, record video, and manage event archives, acting as a centralized hub for security operations.

How does CVE-2026-102608 work?

This vulnerability is an OS Command Injection, classified as CWE-78. It occurs because the application fails to properly sanitize monitor names before including them in system shell commands. By embedding special characters into a monitor name, an attacker can break out of the intended command structure and force the server to execute unauthorized, arbitrary commands.

Do I need to worry about any specific actions triggering this?

Yes. This vulnerability is not triggered automatically by simply having a monitor name with special characters. It requires a two-step process: first, an authenticated user with permission to create or edit monitors must save a name containing malicious characters. Second, another user with 'Events View' permissions must then initiate an event export for that specific monitor.

Is my ZoneMinder instance at risk?

Halo Surface Signal indicates that ZoneMinder is often deployed as a web portal accessible over a network. If your installation is internet-facing, it has a broader attack surface. Even on internal networks, any environment where users have varying privilege levels—specifically those with permission to modify monitor names versus those who can export events—should be evaluated for potential misuse.

When should I apply the fix for CVE-2026-102608?

You should prioritize upgrading to version 1.38.3 or later during your next maintenance window. Begin by identifying all ZoneMinder instances in your environment, verifying who owns them, and assessing their network accessibility. Updating the software is the only way to replace the flawed handling of monitor names with secure, escaped command execution.

References

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.