Lantronix G520 Series Cellular Gateway Cross-site Scripting
Published Sep 29, 2026
7.7
HIGHCVSS 4.0
EPSS 0.39%
Description
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.
Affected products
-
Affected
- 2.6.0.4R6 stable
Default status is the baseline for the product. Each version can override it (patched versions can be marked unaffected).
| Vendor | Product | Default status | Versions |
|---|---|---|---|
| Lantronix | G520 Series | unaffected | Affected
|
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No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
Lantronix has addressed the reported issues with release version 2.6.0.7R6 which is available on their website. https://ltrxdev.atlassian.net/wiki/spaces/LTRXTS/pages/1889828865/Latest+firmware+for+the+G520+Series+G526+G526RP+G527+G528
For more information, see the Lantronix Vulnerability Library. https://www.lantronix.com/technical-support/security-updates/vulnerability-disclosure-policy/vulnerability-library/
For more information or technical assistance, contact Lantronix support: Support@lantronix.com mailto:Support@lantronix.com
References (5)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-89466 Advisory
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-272-01.json
- https://ltrxdev.atlassian.net/wiki/spaces/LTRXTS/pages/1889828865/Latest+firmware+for+the+G520+Series+G526+G526RP+G527+G528
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-272-01
- https://www.lantronix.com/technical-support/security-updates/vulnerability-disclosure-policy/vulnerability-library/
Change history (0)
No recorded changes yet.
CVE.org / MITRE
CISA Vulnrichment
Red Hat
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GitHub
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