CVE-2026-73171: CWE-73 External Control of File Name or Path in Advantech EKI-1242IEIMS
Nozomi Networks Labs identified a CWE-73: External Control of File Name or Path vulnerability in the backup-restore workflow of Advantech EKI-1242EIMS in firmware version V1.06.01 that allows a remote authenticated attacker to overwrite arbitrary files on the device filesystem by uploading a crafted backup archive through the web management interface.
AI Analysis
Technical Summary
This vulnerability allows a remote attacker with authentication privileges to overwrite arbitrary files on the filesystem of Advantech EKI-1242IEIMS devices by exploiting the backup-restore functionality. The flaw is due to insufficient validation of file names or paths in the uploaded backup archive, classified as CWE-73. The affected firmware versions are from initial releases up to and including version 1.06.01. The CVSS 4.0 base score is 8.6, indicating high severity, with network attack vector, low attack complexity, no user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows an authenticated remote attacker to overwrite arbitrary files on the device, potentially leading to system compromise or disruption of device operations. The vulnerability affects confidentiality, integrity, and availability of the device's filesystem.
Mitigation Recommendations
No official patch or remediation is currently documented. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the web management interface to trusted users only and monitor for suspicious activity related to backup-restore operations.
CVE-2026-73171: CWE-73 External Control of File Name or Path in Advantech EKI-1242IEIMS
Description
Nozomi Networks Labs identified a CWE-73: External Control of File Name or Path vulnerability in the backup-restore workflow of Advantech EKI-1242EIMS in firmware version V1.06.01 that allows a remote authenticated attacker to overwrite arbitrary files on the device filesystem by uploading a crafted backup archive through the web management interface.
CVSS v4.0
Score 8.6high
Affected software
Advantech
EKI-1242IEIMS
Advantech
EKI-1242EIMS
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability allows a remote attacker with authentication privileges to overwrite arbitrary files on the filesystem of Advantech EKI-1242IEIMS devices by exploiting the backup-restore functionality. The flaw is due to insufficient validation of file names or paths in the uploaded backup archive, classified as CWE-73. The affected firmware versions are from initial releases up to and including version 1.06.01. The CVSS 4.0 base score is 8.6, indicating high severity, with network attack vector, low attack complexity, no user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows an authenticated remote attacker to overwrite arbitrary files on the device, potentially leading to system compromise or disruption of device operations. The vulnerability affects confidentiality, integrity, and availability of the device's filesystem.
Mitigation Recommendations
No official patch or remediation is currently documented. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the web management interface to trusted users only and monitor for suspicious activity related to backup-restore operations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Nozomi
- Date Reserved
- 2026-08-11T09:36:13.097Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aaa934f55bf5e2cf5a1bda7
Added to database: 09/16/2026, 13:02:07 UTC
Last enriched: 09/16/2026, 13:16:28 UTC
Last updated: 09/16/2026, 22:45:20 UTC
Views: 12
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