CVE-2026-84409
Lantronix G520 Series Cellular Gateway Cross-site Scripting
The device's update mechanism retrieves metadata for software updates over an unencrypted HTTP connection and stores portions of that metadata for later use. A management interface subsequently returns this stored value in a JSON response, and the web interface responsible for displaying update information inserts that value directly into the page as HTML. This behavior allows attacker‑controlled metadata to be interpreted as script content. In addition, the same authenticated origin provides an interface capable of executing system‑level commands with root privileges. An attacker able to influence update metadata could exploit these conditions to execute arbitrary code within the administrative context of the device.
Coverage 1 source
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2026-09-29
CISA Cybersecurity Advisories
high
Lantronix G520 Series Cellular Gateway
Lantronix G520 Series Cellular Gateway has vulnerabilities allowing code execution with root privileges.
Mentioned with
Also covered
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- CVE-2026-91191 Lantronix G520 Series Cellular Gateway Improper Verification of Cryptographic Signature
- CVE-2026-86950 Apple iOS and iPadOS
- CVE-2026-72510 Toptech TMS7 and TopHAT SQL Injection
- CVE-2026-72507 Toptech TMS7 and TopHAT SQL Injection