Summary
Successful exploitation of this vulnerability could allow an attacker to obtain remote code execution.
The following versions of Airleader Master are affected:
- Airleader Master <=6.381 (CVE-2026-1358)
| CVSS | Vendor | Equipment | Vulnerabilities |
|---|---|---|---|
| v3 9.8 | Airleader GmbH | Airleader Master | Unrestricted Upload of File with Dangerous Type |
Background
- Critical Infrastructure Sectors: Chemical, Critical Manufacturing, Energy, Food and Agriculture, Healthcare and Public Health, Transportation Systems, Water and Wastewater
- Countries/Areas Deployed: Worldwide
- Company Headquarters Location: Germany
Vulnerabilities
CVE-2026-1358
Airleader Master versions 6.381 and prior allow for file uploads without restriction to multiple webpages running maximum privileges. This could allow an unauthenticated user to potentially obtain remote code execution on the server.
Affected Products
Airleader Master
Airleader GmbH
Airleader GmbH Airleader Master: <=6.381
known_affected
Remediations
Vendor fix
Airleader recommends that users upgrade Airleader Master to version 6.386 or later.
Mitigation
Users of Airleader Master are encouraged to reach out to Airleader via email or submit a web form for more information and mitigation assistance.
Mitigation
Users of Airleader Master are encouraged to reach out to Airleader via email or submit a web form for more information and mitigation assistance.
Relevant CWE: CWE-434 Unrestricted Upload of File with Dangerous Type
Metrics
| CVSS Version | Base Score | Base Severity | Vector String |
|---|---|---|---|
| 3.1 | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Acknowledgments
- Angel Lomeli of SySS GmbH reported this vulnerability to CISA
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, such as:
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
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