CVE-2025-67038

Lantronix EDS5000 Code Injection Vulnerability

Actively exploited (CISA KEV) Critical 9.3 CVSS 4.0

Description

An issue was discovered in Lantronix EDS5000 2.1.0.0R3. The HTTP RPC module executes a shell command to write logs when user's authentication fails. The username is directly concatenated with the command without any sanitization. This allow attackers to inject arbitrary OS commands into the username parameter. Injected commands are executed with root privileges.

Description as published by the source, in English.

Key facts

Published: 2026-03-11
Last modified: 2026-09-08
Assigned by: ics-cert@hq.dhs.gov
CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/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:
Scored by: ics-cert@hq.dhs.gov
Probability of exploitation: 14.3 % higher than 96 % of all known vulnerabilities
EPSS, next 30 days, model v2026.06.15
Fix available: Not registered in the sources

Actively exploited

CISA added this vulnerability to the Known Exploited Vulnerabilities catalogue on 2026-06-23, with a remediation deadline of 2026-06-26 for US federal agencies.

Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Affected products

Vendor	Product	Versions	Status
Lantronix	E213f102s	all versions listed	Not affected
Lantronix	E213f102s Firmware	< 3.21.0.0R1	Affected
Lantronix	E214f002s	all versions listed	Not affected
Lantronix	E214f002s Firmware	< 3.21.0.0R1	Affected
Lantronix	E214f00cs	all versions listed	Not affected
Lantronix	E214f00cs Firmware	< 3.21.0.0R1	Affected
Lantronix	E214g000s	all versions listed	Not affected
Lantronix	E214g000s Firmware	< 3.21.0.0R1	Affected
Lantronix	E214g001s	all versions listed	Not affected
Lantronix	E214g001s Firmware	< 3.21.0.0R1	Affected
Lantronix	E218f004s	all versions listed	Not affected
Lantronix	E218f004s Firmware	< 3.21.0.0R1	Affected
Lantronix	E218g107s	all versions listed	Not affected
Lantronix	E218g107s Firmware	< 3.21.0.0R1	Affected
Lantronix	E228g002s	all versions listed	Not affected
Lantronix	E228g002s Firmware	< 3.21.0.0R1	Affected
Lantronix	E228g004s	all versions listed	Not affected
Lantronix	E228g004s Firmware	< 3.21.0.0R1	Affected
Lantronix	E228g00cb28	all versions listed	Not affected
Lantronix	E228g00cb28 Firmware	< 3.21.0.0R1	Affected
Lantronix	E228g00cs	all versions listed	Not affected
Lantronix	E228g00cs Firmware	< 3.21.0.0R1	Affected
Lantronix	Eds5008	all versions listed	Not affected
Lantronix	Eds5008 Firmware	< 2.2.0.0r1	Affected
Lantronix	Eds5016	all versions listed	Not affected
Lantronix	Eds5016 Firmware	< 2.2.0.0r1	Affected
Lantronix	Eds5032	all versions listed	Not affected
Lantronix	Eds5032 Firmware	< 2.2.0.0r1	Affected
Lantronix	G526gp12s	all versions listed	Not affected
Lantronix	G526gp12s Firmware	< 2.6.0.4R6	Affected
Lantronix	G526gp17s	all versions listed	Not affected
Lantronix	G526gp17s Firmware	< 2.6.0.4R6	Affected
Lantronix	G526gp1as	all versions listed	Not affected
Lantronix	G526gp1as Firmware	< 2.6.0.4R6	Affected
Lantronix	G526gp1asg	all versions listed	Not affected
Lantronix	G526gp1asg Firmware	< 2.6.0.4R6	Affected
Lantronix	G526gp1cs	all versions listed	Not affected
Lantronix	G526gp1cs Firmware	< 2.6.0.4R6	Affected
Lantronix	G527gp22s	all versions listed	Not affected
Lantronix	G527gp22s Firmware	< 2.6.0.4R6	Affected
Lantronix	G527gp27s	all versions listed	Not affected
Lantronix	G527gp27s Firmware	< 2.6.0.4R6	Affected
Lantronix	G527gp2as	all versions listed	Not affected
Lantronix	G527gp2as Firmware	< 2.6.0.4R6	Affected
Lantronix	G527gp2asg	all versions listed	Not affected
Lantronix	G527gp2asg Firmware	< 2.6.0.4R6	Affected
Lantronix	G528gp2fs	all versions listed	Not affected
Lantronix	G528gp2fs Firmware	< 2.6.0.4R6	Affected
Lantronix	G528gp2fsg	all versions listed	Not affected
Lantronix	G528gp2fsg Firmware	< 2.6.0.4R6	Affected
Lantronix	G528gp2fsgc	all versions listed	Not affected
Lantronix	G528gp2fsgc Firmware	< 2.6.0.4R6	Affected
Lantronix	X300f202s	all versions listed	Not affected
Lantronix	X300f202s Firmware	< 2.6.0.4R6	Affected
Lantronix	X303f202s	all versions listed	Not affected
Lantronix	X303f202s Firmware	< 2.6.0.4R6	Affected
Lantronix	X304g000s	all versions listed	Not affected
Lantronix	X304g000s Firmware	< 2.6.0.4R6	Affected
Lantronix	X304g002s	all versions listed	Not affected
Lantronix	X304g002s Firmware	< 2.6.0.4R6	Affected

Weakness type

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS …
CWE-94: Improper Control of Generation of Code ('Code Injection')
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or b…

Attack techniques

Derived through the weakness type: CVE to CWE to CAPEC to ATT&CK. This shows which techniques the weakness class is historically used for. It does not assert that this vulnerability has been exploited that way.

T1027.006: HTML Smuggling stealth
T1027.009: Embedded Payloads stealth
T1564.009: Resource Forking stealth

References

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-069-02.json Third Party Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-26-069-02 Third Party Advisory, VDB Entry
https://www.lantronix.com/technical-support/security-updates/vulnerability-disclosure-pol… Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-67038 US Government Resource

Related at Berigo

Articles

Nine advisories in one day, from brake computers to ship transponders Mentions this CVE 2026-08-25
CISA published seven new ICS advisories on 25 August 2026 and revised two older ones the same day. Five of the nine carry a top CVSS v3.1 score of 9.…

Does this affect you?

A vulnerability matters only if you run the product, in an affected version, somewhere an attacker can reach.

Check your asset list Browse all vulnerabilities

Sources and freshness

CVE

What it is: A reference number naming one specific vulnerability, for example CVE-2024-9474.
What it tells you: Which vulnerability we are talking about, and in which product.
What it does NOT tell you: Nothing about how serious it is, whether anyone is exploiting it, or whether it concerns you.
Why it matters: Without a shared number, vendor, authority and tooling cannot discuss the same flaw.
Used with the others: The number is the key. NVD, KEV and EPSS all describe the same CVE.

NVD CWE CISA KEV EPSS

How to read this together

No single value should be used on its own. A high CVSS score does not mean a vulnerability is being exploited, and a low one does not mean it is harmless. The four sources answer four different questions.

CVE names the specific vulnerability.
NVD adds severity and technical detail about it.
CWE describes the type of mistake behind it.
CISA KEV shows that it is already being exploited.
EPSS estimates how likely exploitation is soon.

The order that decides what is urgent

Do you actually have the product?
Is the version you run affected?
Is it listed in CISA KEV?
Does it have a high EPSS score?
Is the system reachable from the internet or from others?
How important is the system to the business?
Are there compensating controls already in place?

The first two questions are not about the vulnerability at all. They are about you, and they remove most of the list before you start.

A short example

Fix this week

CVSS 6,5 (medium)

In CISA KEV: yes
EPSS: 94 per cent
A firewall facing the internet

Can be scheduled

CVSS 9,8 (critical)

In CISA KEV: no
EPSS: 0,04 per cent
A test server with no internet access

Sorted by CVSS alone, the one on the right comes first. It is the more serious flaw in theory. But the one on the left is being used against real organisations right now, and it sits where an attacker can reach it. That is the one to fix first.

The critical one still has to be fixed. It just does not have to be fixed today.

This product uses the NVD API but is not endorsed or certified by the NVD. CVE and the CVE logo are registered trademarks of The MITRE Corporation; CVE records are used under the CVE Terms of Use. CWE is a trademark of The MITRE Corporation, used per the CWE Terms of Use. KEV data from CISA (CC0). Exploitation probability from EPSS, a FIRST.org project. Open-source package data from OSV and the GitHub Advisory Database (CC-BY 4.0).

Scores and vectors are shown as published by the sources. The ordering of results is Berigo's own editorial assessment, described on the search page, and is not NVD data. An empty result never means a system is safe.