CVE-2026-2670: Advantech WISE-6610 OS command injection in OpenVPN management

CVE-2026-2670 · Severity: high · CVSS 7.2 · Published 2026-02-18

Advantech WISE-6610 is an industrial IoT gateway used to manage networks and remote access. A vulnerability in its web-based management interface allows an attacker to inject and execute arbitrary system commands with root privileges by manipulating file deletion requests, potentially giving complete control over the device.

Technologies: Advantech WISE-6610-CB, Advantech WISE-6610-EB, Advantech WISE-6610-EL-CB, Advantech WISE-6610-EL-EB, Advantech WISE-6610-EL-JB, Advantech WISE-6610-EL-NB, Advantech WISE-6610-EL-TB, Advantech WISE-6610-JB, Advantech WISE-6610-NB, Advantech WISE-6610-TB, Advantech WISE-6610P-DEA, Advantech WISE-6610P-DNA, Advantech WISE-6610P-DTA. Vendors: Advantech.

Quick answers

Is CVE-2026-2670 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-2670 being exploited in the wild.
How severe is CVE-2026-2670?
High severity, with a CVSS score of 7.2, published 18 February 2026.
Which products and versions are affected?
Advantech WISE-6610-CB 1.2.1_20251110; Advantech WISE-6610-EB 1.2.1_20251110; Advantech WISE-6610-EL-CB 1.2.1_20251110; Advantech WISE-6610-EL-EB 1.2.1_20251110; and 9 more.
Is there a fix for CVE-2026-2670?
A patch was published on 2026-02-18: Patch available in firmware version 1.2.4_20260821 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-2670 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-2670?
Check whether you run Advantech WISE-6610-CB, Advantech WISE-6610-EB, Advantech WISE-6610-EL-CB or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is an OS command injection flaw in the /cgi-bin/luci/admin/openvpn_apply endpoint of the Background Management component. The vulnerable code constructs a shell command from user-supplied input (the delete_file parameter) without proper sanitization, then executes it via os.execute(). An authenticated attacker can send a crafted POST request with malicious shell metacharacters in the delete_file argument to achieve arbitrary command execution as root. The attack is network-accessible and requires valid authentication. The vendor patched the issue in version 1.2.4_20260821 by redesigning the delete operation to use an allowlist of file paths, require numeric tunnel IDs, and use the native filesystem API instead of shell command construction.

Affected products

  • Advantech WISE-6610-NB 1.2.1_20251110
  • Advantech WISE-6610-EB 1.2.1_20251110
  • Advantech WISE-6610-TB 1.2.1_20251110
  • Advantech WISE-6610-JB 1.2.1_20251110
  • Advantech WISE-6610-CB 1.2.1_20251110
  • Advantech WISE-6610-EL-NB 1.2.1_20251110
  • Advantech WISE-6610-EL-EB 1.2.1_20251110
  • Advantech WISE-6610-EL-TB 1.2.1_20251110
  • Advantech WISE-6610-EL-JB 1.2.1_20251110
  • Advantech WISE-6610-EL-CB 1.2.1_20251110
  • Advantech WISE-6610P-DEA 1.2.1_20251110
  • Advantech WISE-6610P-DNA 1.2.1_20251110
  • Advantech WISE-6610P-DTA 1.2.1_20251110

Timeline

  • 2026-02-18: disclosed
  • 2026-02-18: patched: Patch available in firmware version 1.2.4_20260821

References

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