Lantronix Autonomous Out-of-Band Devices WebSSH SSRF via rooturl Parameter
Summary
| CVE | CVE-2026-80149 |
|---|---|
| State | PUBLISHED |
| Assigner | VulnCheck |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-22 16:18:01 UTC |
| Updated | 2026-09-26 14:16:59 UTC |
| 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 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. |
Risk And Classification
Primary CVSS: v4.0 7.7 HIGH from [email protected]
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:X/V:X/RE:X/U:X
EPSS: 0.005800000 probability, percentile 0.454830000 (date 2026-09-27)
Problem Types: CWE-918 | CWE-918 Server-Side Request Forgery (SSRF)
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 7.7 | HIGH | 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/C... |
| 4.0 | CNA | CVSS | 7.7 | HIGH | 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 |
| 3.1 | [email protected] | Secondary | 8.6 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
| 3.1 | CNA | CVSS | 8.6 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowAttack Requirements
NonePrivileges Required
NoneUser Interaction
NoneConfidentiality
LowIntegrity
NoneAvailability
NoneSub Conf.
HighSub Integrity
NoneSub Availability
NoneCVSS: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:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
ChangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | LANTRONIX | SLC8000 | affected 9.7.0.3 custom | Not specified |
| CNA | LANTRONIX | EMG8500 | affected 9.7.0.1 custom | Not specified |
| CNA | LANTRONIX | EMG7500 | affected 9.7.0.1 custom | Not specified |
| CNA | LANTRONIX | SLB882 | affected * custom | Not specified |
| CNA | LANTRONIX | SLC9000 | affected 9.7.0.2 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| ts.lantronix.com/ftp/emg/EMG_8500/9.7.0.1R2 | [email protected] | ts.lantronix.com | |
| ts.lantronix.com/ftp/SLC9000/9.7.0.2R1 | [email protected] | ts.lantronix.com | |
| ts.lantronix.com/ftp/emg/EMG_7500/9.7.0.1R2 | [email protected] | ts.lantronix.com | |
| www.vulncheck.com/advisories/lantronix-autonomous-out-of-band-devices-webssh-ss... | [email protected] | www.vulncheck.com | |
| ts.lantronix.com/ftp/slc8000/9.7.0.3R3 | [email protected] | ts.lantronix.com | |
| revrb.net/2026/09/21/revrb-lantern.html | [email protected] | revrb.net | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: RE/VRb (en)
There are currently no legacy QID mappings associated with this CVE.