CVE-2026-80150: high-severity vulnerability in LANTRONIX SLC8000
Lantronix Autonomous Out-of-Band Devices WebTelnet SSRF via rooturl Parameter
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.7epss 0.6%
Lantronix SLC8000 before firmware v9.7.0.3, SLC9000 before firmware v9.7.0.2, EMG8500/EMG7500 before firmware v9.7.0.1, and all firmware versions of SLB882 contain a server-side request forgery vulnerability in the WebSSH/WebTelnet listener that allows unauthenticated attackers to cause the affected device to establish Telnet connections to attacker-controlled endpoints. The custom shellinaboxd uses the rooturl parameter from the web connection to determine its own IP address; by modifying this parameter an attacker redirects the Telnet terminal connection to an arbitrary host or IP. Attackers can use this capability to enumerate or communicate with internal network endpoints that would otherwise be inaccessible.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N
Affected products
LANTRONIX · EMG7500LANTRONIX · EMG8500LANTRONIX · SLB882LANTRONIX · SLC8000LANTRONIX · SLC9000Related CVEs — LANTRONIX SLC8000
In the same product, most dangerous first.
CVE-2026-80145CRITICALLantronix Autonomous Out-of-Band Devices CLI Command Injection via set cifs passwordEPSS 1.9%CVE-2026-80144CRITICALLantronix Autonomous Out-of-Band Devices CLI Command Injection via mfc eeprom writeEPSS 1.7%CVE-2026-80143CRITICALLantronix Autonomous Out-of-Band Devices CLI Command Injection via mfc eeprom readEPSS 1.7%CVE-2026-80152CRITICALLantronix Autonomous Out-of-Band Devices OS Command Injection via set script scheduleEPSS 1.7%CVE-2026-80151CRITICALLantronix Autonomous Out-of-Band Devices OS Command Injection via set nfs downloadEPSS 1.7%CVE-2026-80155CRITICALLantronix Autonomous Out-of-Band Devices Unauthenticated Authentication Bypass via snprintf Path TruncationEPSS 1.0%
References
https://revrb.net/2026/09/21/revrb-lantern.htmlhttps://ts.lantronix.com/ftp/emg/EMG_7500/9.7.0.1R2/https://ts.lantronix.com/ftp/emg/EMG_8500/9.7.0.1R2/https://ts.lantronix.com/ftp/slc8000/9.7.0.3R3/https://ts.lantronix.com/ftp/SLC9000/9.7.0.2R1/https://www.vulncheck.com/advisories/lantronix-autonomous-out-of-band-devices-webtelnet-ssrf-via-rooturl-parameter