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7.2 High

The Tenda W18E web management server is vulnerable to OS command injection via the "diagnose" packet-capture feature due to improper…

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. 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.

Proof-of-concept code is published

Public PoC

Signals come from Exploit-DB, Metasploit, Nuclei and published proof-of-concept repositories. Their absence means nothing was found, not that nothing exists.

Assessment

CVSS
7.2 (v3.1)
Severity
High
Known exploited
Not listed in CISA KEV
Exploit availability
Public PoC
Published
30 October 2026
Last updated
30 October 2026
Weakness
CWE-78
Assigner
cret@cert.org

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

At the source

References

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