HIGH 7.2 NVD

CVE-2026-118238

The Tenda W18E web management server is vulnerable to OS command injection via the "diagnose" packet-capture feature due to improper validation of JSON fields.

The Tenda W18E web management server is vulnerable to OS command injection via the "diagnose" packet-capture feature due to improper validation of JSON fields. An authenticated user can inject shell metacharacters into the protocol or targetDevice fields, which are later concatenated into a tcpdump command and executed with root privileges. This vulnerability can be exploited without authentication if the device is in a factory-reset state.

References

https://cushz.github.io/en/exploit-development/2026/10/27/hacking-routers-for-fun-and-not-

Published: 2026-10-30 · Source: NVD · Feed updated: 2026-10-30

This high severity vulnerability with a CVSS score of 7.2 was published on 2026-10-30 via NVD.

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