Description
Unrestricted upload of file with dangerous type issue exists in CONPROSYS TM Series. If a specially crafted file is uploaded by a remote authenticated attacker, an arbitrary command may be executed on the product.
Published: 2026-09-14
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: Remote Command Execution
Action: Immediate Patch
AI Analysis

Impact

Unrestricted upload of files with dangerous types is present in the CONPROSYS TM Series. A remote authenticated attacker who can upload a specially crafted file may trigger arbitrary command execution on the device. This weakness corresponds to improper handling of file types and grants attackers the ability to run code with the device’s privileges.

Affected Systems

The vulnerability affects three Contec Co., Ltd models: CPS‑TM341G5MB‑ADSC1‑931, CPS‑TM341GMB‑ADSC1‑931, and CPS‑TM341MB‑ADSC1‑931. No specific firmware or software versions are listed, implying that all current firmware releases of these models are potentially impacted.

Risk and Exploitability

With a CVSS score of 8.7, the vulnerability is classified as High severity. The EPSS score is not available, and the issue is not listed in the CISA KEV catalog, yet the combination of authentication and clear attack path that can lead to remote command execution. The risk is elevated for any organization that allows authenticated users to interact with the device’s upload interface or who have not applied vendor fixes.

Generated by OpenCVE AI on September 14, 2026 at 11:25 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the vendor‑released firmware update for the affected Contec devices; the update is available from the links provided by Contec.
  • If an update is not yet available, restrict or disable the upload functionality, and enforce strict file‑type validation to reject non‑permitted file extensions.
  • Limit authenticated access to the device and monitor for abnormal upload activity; consider implementing network segmentation to contain potential compromise.

Generated by OpenCVE AI on September 14, 2026 at 11:25 UTC.

Tracking

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Advisories

No advisories yet.

History

Mon, 14 Sep 2026 12:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Mon, 14 Sep 2026 11:45:00 +0000

Type Values Removed Values Added
Title Unrestricted File Upload Enables Remote Command Execution on Contec CONPROSYS TM Series Devices

Mon, 14 Sep 2026 07:00:00 +0000

Type Values Removed Values Added
Description Unrestricted upload of file with dangerous type issue exists in CONPROSYS TM Series. If a specially crafted file is uploaded by a remote authenticated attacker, an arbitrary command may be executed on the product.
Weaknesses CWE-434
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: jpcert

Published:

Updated: 2026-09-14T11:19:47.988Z

Reserved: 2026-08-31T02:30:58.278Z

Link: CVE-2026-82780

cve-icon Vulnrichment

Updated: 2026-09-14T11:14:11.463Z

cve-icon NVD

Status : Received

Published: 2026-09-14T07:17:19.663

Modified: 2026-09-14T12:17:48.323

Link: CVE-2026-82780

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-14T11:30:08Z

Weaknesses
  • CWE-434

    Unrestricted Upload of File with Dangerous Type