CVE-2026-5547 Details
Description
A vulnerability has been found in Tenda AC10 16.03.10.10_multi_TDE01. Affected is the function formAddMacfilterRule of the file /bin/httpd. Such manipulation leads to os command injection. It is possible to launch the attack remotely. Multiple endpoints might be affected.
A command injection vulnerability has been identified in the Tenda AC10 router, specifically in the firmware version 16.03.10.10_multi_TDE01. The issue arises in the 'formAddMacfilterRule' function within the '/bin/httpd' file, where user input is inadequately sanitized before being passed to a command execution function. This vulnerability allows authenticated attackers to inject and execute arbitrary OS commands with root privileges on the device. Static analysis has revealed that this flaw is not isolated, as 20 other functions exhibit the same vulnerability pattern, including 'formDelMacfilterRule' and 'formSetFirewallCfg'.
Users are advised to update to a version that addresses this vulnerability, if available. Additionally, Tenda routers should be configured to disable remote management features and to use strong, unique passwords for administrative access.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 6, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/somanyerrors/tenda-ac10v4-vulnerabilities/blob/main/findings/CRITICAL-03-command-injection-formaddmacfilterrule.md | [email protected] | Third Party Advisory |
| https://vuldb.com/submit/782296 | [email protected] | Third Party Advisory |
| https://vuldb.com/vuln/355311 | [email protected] | Third Party Advisory |
| https://vuldb.com/vuln/355311/cti | [email protected] | Permissions Required |
| https://www.tenda.com.cn/ | [email protected] | Product |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| tenda ac10 firmware | 16.03.10.10_multi_tde01 |
CPE
Remediation
| |
| tenda ac10 | 4.0 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 30, 2026 | Initial Analysis | [email protected] |
| Apr 5, 2026 | New CVE Received | [email protected] |