CVE-2026-7102Public exploitNetwork attack vector

Authenticated OS command execution via unsanitized MAC input

Published Apr 27, 2026 · Updated Apr 27, 2026

Command injection in Tenda F456 Firmware 1.0.0.5 allows remote authenticated users to execute OS commands through its web interface. FromWriteFacMac inserts the untrusted mac parameter into a doSystemCmd command without neutralizing shell syntax. Low-privileged HTTP access is required, and injected commands run with the operating-system privileges assigned to httpd.

CVSS severity6.3
Medium
EPSS probability3.02%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Tenda F456 Firmware 1.0.0.5 allows remote authenticated users to execute OS commands through its web interface. FromWriteFacMac inserts the untrusted mac parameter into a doSystemCmd command without neutralizing shell syntax. Low-privileged HTTP access is required, and injected commands run with the operating-system privileges assigned to httpd.

The record

CVE
CVE-2026-7102
Published
Apr 27, 2026
Updated
Apr 27, 2026
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
F456 Firmware
Classifications
CWE-77, CWE-74, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 27, 2026Record 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · F456 Firmwareversion=1.0.0.5

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1190Exploit Public-Facing Application

Public exploit references

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

Technologies

Your stack

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Your stack

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