CVE-2026-80149
CVE-2026-80149
Lantronix SLC8000 before firmware v9.7.0.3, 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 SSH 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 SSH 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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Weakness classification (CWE)
References
- revrb.net/2026/09/21/revrb-lantern.html (technical-description)
- ts.lantronix.com/ftp/slc8000/9.7.0.3R3/ (patch)
- ts.lantronix.com/ftp/emg/EMG_8500/9.7.0.1R2/ (patch)
- ts.lantronix.com/ftp/emg/EMG_7500/9.7.0.1R2/ (patch)
- www.vulncheck.com/advisories/lantronix-autonomous-out-of-band-devices-webssh-ss… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-80149?
- CVE-2026-80149 is a high-severity vulnerability, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2026-09-22.
- How severe is CVE-2026-80149?
- High severity. CVSS v3 base score is 8.6 out of 10.