CVE-2026-31255

CRITICAL EPSS 62.1%

Published Apr 27, 20262mo ago · Modified Jun 17, 20261w ago

9.8 CVSS 3.1

Critical

Published Apr 27, 2026 2mo ago

Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score

9.8

Exploitability

3.9

Impact

5.9

Vector string

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

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS Exploit Probability

62.1% percentile

Exploit & Patch Status

Public Exploit Known

No Patch Available

Weaknesses 1

CWE-77 Command Injection Injection

Affected Products 2

Vendor	Product	Version	Range
tenda	ac18_firmware	15.03.05.05	any
tenda	ac18	*	any

References 1

github.com https://github.com/izxnfirh8148/CVE_REQUESTS_references/blob/main/Tenda_AC18/Tenda_AC18_3th/README.md

ExploitThird Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.