⚠ Actively exploited
Added to CISA KEV on 2021-11-03. Federal agencies required to patch by 2022-05-03. Required action: Apply updates per vendor instructions..

CVE-2018-14558 — OS Command Injection in Ac10 Firmware

CWE-78 — OS Command Injection5 documents5 sources
Severity
9.8CRITICALNVD
EPSS
77.3%
top 1.02%
CISA KEV
KEV
Added 2021-11-03
Due 2022-05-03
Exploit
Exploited in wild
Active exploitation observed
Affected products
3
Tenda Ac10 FirmwareTenda AC7 FirmwareTenda AC9 Firmware
Timeline
PublishedOct 30
KEV addedNov 3
KEV dueMay 3
Latest updateMay 13
CISA Required Action: Apply updates per vendor instructions.

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:HExploitability: 3.9 | Impact: 5.9

Affected Packages3 packages

▶NVDtenda/ac10_firmware15.03.06.23_cn
▶NVDtenda/ac7_firmware15.03.06.44_cn
▶NVDtenda/ac9_firmware15.03.05.19\(6318\)_cn

🔴Vulnerability Details

3
GHSA
GHSA-jh5j-w2c9-jcff: An issue was discovered on Tenda AC7 devices with firmware through V15↗2022-05-13
▶
CVEList
CVE-2018-14558: An issue was discovered on Tenda AC7 devices with firmware through V15↗2018-10-30
▶
VulnCheck
Tenda AC7, AC9, and AC10 Routers Command Injection Vulnerability↗2018
▶

📋Vendor Advisories

1
CISA
Tenda AC7, AC9, and AC10 Routers Command Injection Vulnerability↗2021-11-03
▶
CVE-2018-14558 — OS Command Injection in Tenda | cvebase