CVE-2026-5547Network attack vector

Authenticated root command execution via MAC-filter input

Published Apr 5, 2026 · Updated Apr 5, 2026

OS command injection in Tenda AC10 16.03.10.10_multi_TDE01 allows remote authenticated users to execute commands through the web interface. The formAddMacfilterRule handler in /bin/httpd passes a MAC-filter parameter obtained by websGetVar() to doSystemCmd() after validation that fails to reject shell metacharacters. Valid router administrator credentials are required, and injected commands run with root-level privileges on the device.

CVSS severity5.3
Medium
EPSS probability2.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Tenda AC10 16.03.10.10_multi_TDE01 allows remote authenticated users to execute commands through the web interface. The formAddMacfilterRule handler in /bin/httpd passes a MAC-filter parameter obtained by websGetVar() to doSystemCmd() after validation that fails to reject shell metacharacters. Valid router administrator credentials are required, and injected commands run with root-level privileges on the device.

The record

CVE
CVE-2026-5547
Published
Apr 5, 2026
Updated
Apr 5, 2026
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
AC10
Classifications
CWE-78, CWE-77, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=16.03.10.10_multi_TDE01

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · AC10version=16.03.10.10_multi_TDE01

Published CVSS scores

6.5VulDB CNAAV:N/AC:L/Au:S/C:P/I:P/A:P
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.3VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
6.3VulDB CNACVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

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.

Technologies

Your stack

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Your stack

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