Is CVE-2026-80143 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-80143 being exploited in the wild.

How severe is CVE-2026-80143?

Critical severity, with a CVSS score of 9.9, 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 v9.7.0.2; and 3 more.

Is there a fix for CVE-2026-80143?

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-2026-80143 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-80143?

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.

CVE-2026-80143: Lantronix SLC/EMG/SLB out-of-band management devices command injection

CVE-2026-80143 · Severity: critical · CVSS 9.9 · Published 2026-09-22

Lantronix out-of-band management devices used to remotely control serial-attached infrastructure in data centers, telecom networks, and government facilities contain a command injection flaw in their CLI interface. An attacker with login credentials can execute arbitrary commands with root privileges, potentially compromising the device and any systems it manages, as well as using it as a foothold into the broader network.

Technologies: Lantronix EMG7500, Lantronix EMG8500, Lantronix SLB882, Lantronix SLC8000, Lantronix SLC9000, Lantronix SLCx-02, Lantronix SLCx-03. Vendors: Lantronix.

Quick answers

Is CVE-2026-80143 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-80143 being exploited in the wild.
How severe is CVE-2026-80143?: Critical severity, with a CVSS score of 9.9, 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 v9.7.0.2; and 3 more.
Is there a fix for CVE-2026-80143?: 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-2026-80143 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-80143?: 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 vulnerability exists in an undocumented "mfc eeprom read" CLI command that passes unsanitized user input directly to a system() call. An authenticated attacker can inject shell metacharacters into the command parameter to break out and execute arbitrary commands as root. Patches are available for SLC8000/SLC9000 (v9.7.0.2+) and EMG-series (v9.7.0.1+), but no patches exist for SLB882, SLCx-02, and SLCx-03 devices.

Affected products

Lantronix SLC8000 before v9.7.0.2
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-03 all versions
Lantronix SLCx-02 all versions

Timeline

2026-09-21: disclosed
2026-09-22: advisory

References

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