CVE-2018-14558Known exploitationNetwork attack vector

Unauthenticated command execution via untrusted USB-unload input

Published Oct 30, 2018 · Updated Oct 21, 2025

Command injection in Tenda AC7, AC9, and AC10 firmware allows remote attackers to execute OS commands via crafted USB-unload requests. The formsetUsbUnload handler passes untrusted goform/setUsbUnload request input to dosystemCmd for command execution. Exploitation requires network access to the affected handler but no credentials or user interaction.

CVSS severity9.8
Critical
EPSS probability8.51%
Next 30 days · Nov 1, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Tenda AC7, AC9, and AC10 firmware allows remote attackers to execute OS commands via crafted USB-unload requests. The formsetUsbUnload handler passes untrusted goform/setUsbUnload request input to dosystemCmd for command execution. Exploitation requires network access to the affected handler but no credentials or user interaction.

The record

CVE
CVE-2018-14558
Published
Oct 30, 2018
Updated
Oct 21, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 30, 2018CVE publishedPublication date reported by the CVE source.
  2. Oct 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsShadowserver observations through Sep 28, 2026. Gaps indicate unavailable data.
Sep 22, 2026Sep 28, 2026
View daily counts
Reporting dayUnique IPs
Sep 22, 20262
Sep 23, 20262
Sep 24, 20262
Sep 25, 20262
Sep 26, 20262
Sep 27, 20262
Sep 28, 20262
Latest reporting daySep 28, 2026
Latest daily unique IPs2
Prior 30-day average1.8
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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