Tenda
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.
CVE-2026-118238 Oct 30, 2026 Source: Vendor
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.
Source of record
The credited names below are quoted verbatim from the vendor's own advisory:
https://nvd.nist.gov/vuln/detail/CVE-2026-118238
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CVE-2026-118238
BR2026-0000-039858
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Credited as Fabrice Bellard
CVE-2026-118238
BR2026-0000-039859
unclaimed
Credited as claude) is enough for me to emulate the environment