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Vulnerability record · CVE-2026-80150 · published 22 September 2026

CVE-2026-80150: Server-side request forgery (SSRF) vulnerability

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.

7.7 CVSS 4.0 High EPSS 0.58% · top 54.5% CWE-918 · Server-side request forgery (SSRF) Awaiting Analysis
7.7CVSS 4.0 base score
0.58%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
6References
26 Sep 2026Last modified by NVD

Description

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://revrb.net/2026/09/21/revrb-lantern.html
https://ts.lantronix.com/ftp/SLC9000/9.7.0.2R1/
https://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://www.vulncheck.com/advisories/lantronix-autonomous-out-of-band-devices-webtelnet-ssrf-via-rooturl-parameter

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Source: NIST National Vulnerability Database (record CVE-2026-80150), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.