CISA Adds Lantronix Vulnerability to KEV Catalog – 6-23-26

Today, CISA announced that they added a code injection vulnerability in the Lantronix EDS5000 Serial-to-Ethernet Converters to their Known Exploited Vulnerabilities (KEV) catalog. The vulnerability was previously disclosed by Lantronix. The vulnerability was originally reported by Forescout as part of their Bridge:Break report; that report included proof-of-concept code for the vulnerability. 

CISA has directed federal agencies using the Lantronix EDS5000 product to apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk guidance and CISA’s “Forensics Triage Requirements”. Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. CISA established a compliance date of June 26th, 2026.