CVE-2026-2670 Advantech WISE-6610-NB Background Management openvpn_apply os command injection
Remote attackers can execute arbitrary OS commands via the delete_file argument in the openvpn_apply CGI script of Advantech WISE-6610 devices.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-2670?
CVE-2026-2670 is a high-severity command injection vulnerability in Advantech WISE-6610-CB, published on 18 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A vulnerability was identified in Advantech WISE-6610-NB, WISE-6610-EB, WISE-6610-TB, WISE-6610-JB, WISE-6610-CB, WISE-6610-EL-NB, WISE-6610-EL-EB, WISE-6610-EL-TB, WISE-6610-EL-JB, WISE-6610-EL-CB, WISE-6610P-DEA, WISE-6610P-DNA and WISE-6610P-DTA 1.2.1_20251110. Affected is an unknown function of the file /cgi-bin/luci/admin/openvpn_apply of the component Background Management. Such manipulation of the argument delete_file leads to os command injection. The attack can be executed remotely. The exploit is publicly available and might be used. Upgrading to version 1.2.4_20260821 is able to address this issue. It is advisable to upgrade the affected component. The vendor explains: "The delete operation has been redesigned to map the requested file type to a fixed allowlisted path, require a numeric tunnel ID, reject invalid requests, and use the native filesystem API (fs.unlink) instead of constructing a shell command from request data."
Which versions are affected by CVE-2026-2670?
How do I fix CVE-2026-2670?
No fix has been published for CVE-2026-2670 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-2670 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2670 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-36ph-wmrq-6hrj.