# CVE-2026-80149: Lantronix SLC8000/SLC9000/EMG series server-side request forgery in WebSSH

Source: https://junglewise.ai/threats/cve-2026-80149-lantronix-slc8000-before-firmware-v9-7-0-3-slc9000-before  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-22. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-80149 · Severity: high · CVSS 8.6 · Published 2026-09-22

Lantronix out-of-band management devices used in data centers, telecommunications, and government networks contain a flaw in their web-based terminal feature that allows attackers without credentials to redirect SSH connections to arbitrary hosts. An attacker can exploit this to probe internal networks or redirect terminal sessions, potentially gaining access to managed devices and serial-connected infrastructure that should be isolated. These devices are commonly deployed as secondary management paths in critical environments including defense and energy facilities.

Technologies: [Lantronix EMG7500](https://junglewise.ai/threats/technologies/emg7500), [Lantronix EMG8500](https://junglewise.ai/threats/technologies/emg8500), [Lantronix SLB882](https://junglewise.ai/threats/technologies/slb882), [Lantronix SLC8000](https://junglewise.ai/threats/technologies/slc8000), [Lantronix SLC9000](https://junglewise.ai/threats/technologies/slc9000), [Lantronix SLCx-02](https://junglewise.ai/threats/technologies/slcx-02), [Lantronix SLCx-03](https://junglewise.ai/threats/technologies/slcx-03). Vendors: [Lantronix](https://junglewise.ai/threats/vendors/lantronix).

## Quick answers

**Is CVE-2026-80149 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-80149 being exploited in the wild.

**How severe is CVE-2026-80149?** High severity, with a CVSS score of 8.6, published 22 September 2026.

**Which products and versions are affected?** Lantronix EMG7500 before v9.7.0.1; Lantronix EMG8500 before v9.7.0.1; Lantronix SLB882 all versions; Lantronix SLC8000 before v9.7.0.3; and 3 more.

**Is there a fix for CVE-2026-80149?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-80149 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-80149?** Check whether you run Lantronix EMG7500, Lantronix EMG8500, Lantronix SLB882 or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The WebSSH/WebTelnet listener in the custom shellinaboxd implementation fails to properly validate the rooturl parameter, allowing unauthenticated attackers to perform server-side request forgery. By modifying the rooturl parameter in a web request, an attacker can cause the device to establish SSH connections to attacker-controlled endpoints or internal network targets. This enables network reconnaissance and potential lateral movement into otherwise isolated management infrastructure.

## Affected products

- Lantronix SLC8000 before v9.7.0.3
- Lantronix SLC9000 before v9.7.0.2
- Lantronix EMG8500 before v9.7.0.1
- Lantronix EMG7500 before v9.7.0.1
- Lantronix SLB882 all versions
- Lantronix SLCx-02 all versions
- Lantronix SLCx-03 all versions

## Timeline

- 2026-09-22: disclosed: CVE-2026-80149 published

## References

- [https://revrb.net/2026/09/21/revrb-lantern.html](https://revrb.net/2026/09/21/revrb-lantern.html)
- [https://ts.lantronix.com/ftp/SLC9000/9.7.0.2R1/](https://ts.lantronix.com/ftp/SLC9000/9.7.0.2R1/)

## Related threats

- [Lantronix SLC8000/SLC9000/EMG series path traversal RCE in web upload](https://junglewise.ai/threats/cve-2026-80156-lantronix-slc8000-before-firmware-v9-7-0-5-slc9000-before)
- [Lantronix SLC8000 SLC9000 EMG authentication bypass in web management portal](https://junglewise.ai/threats/cve-2026-80155-lantronix-slc8000-before-firmware-v9-7-0-5-slc9000-before)
- [Lantronix Autonomous Out-of-Band Devices authentication bypass in web management](https://junglewise.ai/threats/cve-2026-80154-all-firmware-versions-of-lantronix-slc8000-slc9000-emg8500)
- [Lantronix Autonomous Out-of-Band Device command injection in CLI](https://junglewise.ai/threats/cve-2026-80152-lantronix-slc8000-before-firmware-v9-7-0-3-slc9000-before)
- [Lantronix out-of-band management devices command injection in NFS download](https://junglewise.ai/threats/cve-2026-80151-lantronix-slc8000-before-firmware-v9-7-0-3-slc9000-before)