CVE-2026-80148High· 8.6▾ Twilight

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 liste…

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score47/ 100 · Moderate

impact 47.3 · likelihood 0.1 · exploitation 0

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Proof of concept

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Published

Sep 22, 2026

Updated

Sep 24, 2026

CVSS

8.6

Vendor

LANTRONIX

Product

SLC8000

CWE

CWE-918

Depth score

47 · Moderate

EPSS

0.54% · p43

Platforms

—

Source

NVD

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

CISA SSVC

decided 2026-09-22

Exploitation: none
Automatable: yes
Technical impact: partial

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

EPSS history

Exploit-prediction probability, daily snapshots since Sep 24.

0.5% → 0.5%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

3 events · 2 days

Sep 22, 2026Published
Disclosed via NVD
Sep 24, 2026Record revised
Last analysed / modified upstream
Sep 24, 2026EPSS first tracked
0.5%

LANTRONIX CWE-918 #nvd #cve.org

Affected

SLC8000 < 9.7.0.2
EMG8500 < 9.7.0.1
EMG7500 < 9.7.0.1
SLB882

Full technical detail▾

Overview

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 builds its SSH connection target using a snprintf call with user-supplied input; by supplying an overlong username string an attacker causes the device IP suffix to be truncated, redirecting the resulting connection to an arbitrary host. Attackers can use this capability to enumerate or communicate with internal network endpoints that would otherwise be inaccessible.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org

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