Is CVE-2026-118238 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-118238?

CVE-2026-118238 has a CVSS v3 severity of HIGH (7.2).

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CVE-2026-118238

Description

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.