CVE-2018-14558

CRITICAL9.8

CISA KEV

Published 2018-10-30 · Updated 2026-06-17 · Source cve@mitre.org

Summary

CVE-2018-14558 is a critical-severity (CVSS 9.8) vulnerability in Tenda AC7, AC9, and AC10 Routers. CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by May 3, 2022. CISA does not currently list it as used in ransomware campaigns. Tenda has 3 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.

All 3 known-exploited Tenda vulnerabilities →

Description

An issue was discovered on Tenda AC7 devices with firmware through V15.03.06.44_CN(AC7), AC9 devices with firmware through V15.03.05.19(6318)_CN(AC9), and AC10 devices with firmware through V15.03.06.23_CN(AC10). A command Injection vulnerability allows attackers to execute arbitrary OS commands via a crafted goform/setUsbUnload request. This occurs because the "formsetUsbUnload" function executes a dosystemCmd function with untrusted input.

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

CWE-78CWE-78

CISA Known-Exploited Vulnerability

Product: Tenda — AC7, AC9, and AC10 Routers

Name: Tenda AC7, AC9, and AC10 Routers Command Injection Vulnerability

Date added: 2021-11-03 · Due: 2022-05-03

Required action: Apply updates per vendor instructions.

References

View on NVD

More exploited Tenda vulnerabilities

Most recently added to CISA KEV

CVE-2021-31755
AC11 Router — Tenda AC11 Router Stack Buffer Overflow Vulnerability
added 2021-11-03
CVE-2020-10987
AC1900 Router AC15 Model — Tenda AC1900 Router AC15 Model Remote Code Execution Vulnerability
added 2021-11-03

View all →

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