CVE-2026-31255

PoC —

CVSS 3.1

9.8 critical

EPSS

1%p64

Published

Apr 27, 2026 (Apr 27, 2026)

Modified

Jun 17, 2026

Description

A command injection vulnerability exists in Tenda AC18 V15.03.05.05_multi. The vulnerability is located in the /goform/SetSambaCfg interface, where improper handling of the guestuser parameter allows attackers to execute arbitrary system commands.

Vendors: tenda
Products: ac18 firmware
Weakness: CWE-77
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.1%)

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