EUVD-2026-80730Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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
Remote management interface reachable over network (AV:N/AC:L) but code injection requires high-privilege authenticated access (PR:H); Lua execution fully compromises the device (C/I/A:H, S:U).
Primary rating from Vendor (Nozomi).
CVSS VectorVendor: Nozomi
Lifecycle Timeline
2DescriptionCVE.org
Nozomi Networks Labs identified a CWE-94: Improper Control of Generation of Code ('Code Injection') vulnerability in the Modbus CSV import workflow of Advantech EKI-1242EIMS in firmware version V1.06.01 that allows a remote authenticated attacker to execute arbitrary Lua code on the device via a crafted imported file.
AnalysisAI
Arbitrary Lua code execution is possible on Advantech EKI-1242EIMS and EKI-1242IEIMS industrial Modbus gateways running firmware V1.06.01, because the Modbus CSV import workflow fails to neutralize code embedded in an uploaded configuration file (CWE-94). Exploitation requires an attacker to already hold a high-privilege authenticated session on the device web management interface and to be able to reach that interface over the network, which materially limits exposure in properly segmented OT environments; no user interaction on the part of a legitimate operator is needed, only the attacker's own crafted upload. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an authenticated high-privilege session (PR:H) on the Advantech EKI-1242EIMS/EKI-1242IEIMS web management interface, plus the ability to reach and use the Modbus CSV import workflow to upload a crafted file. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine but access-gated vulnerability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | The primary fix is to move off vulnerable firmware: consult the Advantech security advisory for EKI-1242IEIMS (SECURITY-ADVISORY----EKI-1242IEIMS-updated-20260904.pdf) and apply the vendor-supplied firmware update for the EKI-1242EIMS/EKI-1242IEIMS that supersedes V1.06.01; no exact patched version string is confirmed in the available data, so validate the target release directly with Advantech or through the advisory before upgrading, and take a configuration backup first because firmware upgrades on these gateways can reset Modbus mappings. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Advantech EKI-1242EIMS and EKI-1242IEIMS units running firmware V1.06.01, confirm whether the web management interface is reachable from untrusted networks, restrict that interface via firewall/ACL to only necessary administrative hosts, disable remote management where not required, rotate credentials for high-privilege accounts, and review logs for unexpected CSV uploads or anomalous administrative sessions. …
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External POC / Exploit Code
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