Summary
Successful exploitation of this vulnerability could result in full Remote Code Execution (RCE) as the web server user.
The following versions of Zoneminder are affected:
- Zoneminder 1.37.48|1.38.3
| CVSS | Vendor | Equipment | Vulnerabilities |
|---|---|---|---|
| v3 8.8 | Zoneminder | Zoneminder | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') |
Background
- Critical Infrastructure Sectors: Information Technology
- Countries/Areas Deployed: Worldwide
- Company Headquarters Location: United States
Vulnerabilities
CVE-2026-76060
An authenticated OS Command Injection vulnerability exists in ZoneMinder's event export functionality. The exportFile HTTP request parameter is passed unsanitized into a shell command executed via PHP's exec(), allowing any authenticated user with View Events permission to execute arbitrary operating system commands on the server.
Affected Products
Zoneminder
Zoneminder
Zoneminder Zoneminder: 1.37.48|1.38.3
known_affected
Remediations
Vendor fix
Zoneminder recommends upgrading to version 1.38.3 or later by downloading the installer for your system at: https://zoneminder.com/downloads
https://zoneminder.com/downloads
Vendor fix
Users may also get the source code from Zoneminder's Github: https://github.com/ZoneMinder/zoneminder
https://github.com/ZoneMinder/zoneminder
Vendor fix
For more details refer to Zoneminder's security advisories at: https://github.com/ZoneMinder/zoneminder/security/advisories/GHSA-88m4-hrgp-m9v3
https://github.com/ZoneMinder/zoneminder/security/advisories/GHSA-88m4-hrgp-m9v3
Relevant CWE: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Metrics
| CVSS Version | Base Score | Base Severity | Vector String |
|---|---|---|---|
| 3.1 | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 4.0 | 8.7 | HIGH | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
Acknowledgments
- CISA discovered a public Proof of Concept (PoC) as authored by Scriptkittens and reported it to Zoneminder
Legal Notice and Terms of Use
This product is provided subject to this Notification (https://www.cisa.gov/notification and this Privacy & Use policy (https://www.cisa.gov/privacy-policy
Recommended Practices
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability.
Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
Locate control system networks and remote devices behind firewalls and isolating them from business networks.
When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
Do not click web links or open attachments in unsolicited email messages.
Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.
No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time.
Revision History
- Initial Release Date: 2026-08-25
| Date | Revision | Summary |
|---|---|---|
| 2026-08-25 | 1 | Initial Publication |
Legal Notice and Terms of Use
This product is provided subject to this Notification and this Privacy & Use policy.