CVE-2026-118238 Tenda W18E - OS Command Injection

Tenda W18E contains an OS command injection caused by improper validation of JSON fields in the diagnose packet-capture feature, letting authenticated or unauthenticated attackers execute commands as root, exploit requires factory-reset state or authentication.

CVSS base score 7.2 /10
High
CISA KEV
Not listed
Public exploit
Proof of concept available
EPSS
1.54% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
OS Command Injection
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published
30 October 2026
Updated
1 November 2026
Weakness
CWE-78

Vendor fix

Update to the latest firmware version that fixes this issue.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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