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Security tracker

CVE-2025-67038: Lantronix EDS5000 Code Injection Vulnerability

In short

Lantronix EDS5000 has a weakness classified as OS command injection (CWE-78). CISA added it to its Known Exploited Vulnerabilities catalog on 2026-06-23. NVD lists CVSS 4.0 at 9.3 CRITICAL.

What it is

“Lantronix EDS5000 contains a code injection vulnerability that could allow attackers to inject arbitrary OS commands into the username parameter. Injected commands are executed with root privileges.” — CISA KEV, retrieved 2026-11-01
“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.” — NVD, retrieved 2026-11-01

Who is affected

Lantronix EDS5000. NVD lists the following versions as affected:

  • Lantronix eds5008 Firmware: before 2.2.0.0r1
  • Lantronix eds5016 Firmware: before 2.2.0.0r1
  • Lantronix eds5032 Firmware: before 2.2.0.0r1
  • Lantronix g526gp12s Firmware: before 2.6.0.4R6
  • Lantronix g526gp17s Firmware: before 2.6.0.4R6
  • Lantronix g526gp1cs Firmware: before 2.6.0.4R6
  • Lantronix g526gp1asg Firmware: before 2.6.0.4R6
  • Lantronix g526gp1as Firmware: before 2.6.0.4R6
  • Lantronix g527gp22s Firmware: before 2.6.0.4R6
  • Lantronix g527gp27s Firmware: before 2.6.0.4R6
  • Lantronix g527gp2as Firmware: before 2.6.0.4R6
  • Lantronix g527gp2asg Firmware: before 2.6.0.4R6
  • Lantronix g528gp2fs Firmware: before 2.6.0.4R6
  • Lantronix g528gp2fsg Firmware: before 2.6.0.4R6
  • Lantronix g528gp2fsgc Firmware: before 2.6.0.4R6
  • Lantronix x300f202s Firmware: before 2.6.0.4R6
  • Lantronix x303f202s Firmware: before 2.6.0.4R6
  • Lantronix x304g00as Firmware: before 2.6.0.4R6
  • Lantronix x304g000s Firmware: before 2.6.0.4R6
  • Lantronix x304g002s Firmware: before 2.6.0.4R6
  • Lantronix x304g007s Firmware: before 2.6.0.4R6
  • Lantronix x304g00cs Firmware: before 2.6.0.4R6
  • Lantronix e228g002s Firmware: before 3.21.0.0R1
  • Lantronix e228g004s Firmware: before 3.21.0.0R1
  • Lantronix e228g00cb28 Firmware: before 3.21.0.0R1
  • Lantronix e228g00cs Firmware: before 3.21.0.0R1
  • Lantronix e213f102s Firmware: before 3.21.0.0R1
  • Lantronix e214f002s Firmware: before 3.21.0.0R1
  • Lantronix e214f00cs Firmware: before 3.21.0.0R1
  • Lantronix e214g000s Firmware: before 3.21.0.0R1
  • Lantronix e214g001s Firmware: before 3.21.0.0R1
  • Lantronix e218f004s Firmware: before 3.21.0.0R1
  • Lantronix e218g107s Firmware: before 3.21.0.0R1

Exploitation status

CISA KEV added: 2026-06-23. Known ransomware campaign use: Not reported by CISA. Due date CISA set for US federal civilian agencies: 2026-06-26.

Scores

NVD CVSS 4.0: 9.3 CRITICAL; 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:X/V:X/RE:X/U:X; source [email protected].

EPSS by FIRST: 20.29%; percentile 97.47; score date 2026-10-31. EPSS estimates the probability of exploitation in the next 30 days.

CWE: CWE-78, CWE-94.

Timeline

Source events
DateEvent
2026-03-11T17:16:52.010NVD published
2026-06-23CISA KEV added
2026-06-26CISA KEV due
2026-09-08T19:00:57.803NVD last modified
2026-10-31FIRST EPSS score

CISA 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.” — CISA KEV

What to do

  • Confirm whether you run Lantronix EDS5000 and which version.
  • Apply the vendor update or mitigation in the advisory.
  • Follow CISA’s required action.
  • Review the vendor guidance on signs of compromise.
  • Track the fix through completion.

References

Sources and dates

CISA Known Exploited Vulnerabilities Catalog, version 2026.10.30; retrieved 2026-11-01. CISA KEV data: CC0 1.0. No endorsement by CISA.

NVD retrieved: 2026-11-01. This product uses the NVD API but is not endorsed or certified by the NVD.

EPSS scores by FIRST; score date 2026-10-31.

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