Router

Tenda AC9

Contribute

Projects for this device

Replacement firmware

Replace router software with a customizable system for network controls and community packages.

How to get started

Follow the guide for your exact router version. The first installation may use its web interface, recovery mode or a serial connection.

Setup
Firmware replacement; route varies by router
You’ll need
Exact hardware revision, an appropriate OpenWrt release and its model-specific installation guide.
v1 · Broadcom BCM43217 Wi-Fi
Processor: Broadcom BCM47189B0Open hardware record
Broadcom BCM43217 / Broadcom BCM47189 Wi-Fi · Broadcom BCM47189
Get OpenWrt firmware Release listed · 25.12.6
Hardware revision not specified
Open hardware record

Broadcom BCM43217 / Broadcom BCM47189 Wi-Fi · Broadcom BCM47189

Limitations
WiFi 2.4GHz partly WiFi 5GHz
Limitations
WiFi 2.4GHz partly
Limitations
WiFi 5GHz
Sources

Features & details

Check the project and hardware shown for each feature.

Device details

Tenda AC9 v3 — TechInfoDepot (github.com)

Hardware revision
v3

Device details

Tenda AC9 — TechInfoDepot (github.com)

Hardware revision
v1

Device details

Tenda AC9 v3 — WikiDevi (github.com)

Hardware revision
v3.2

OpenWrt · Broadcom BCM43217 / Broadcom BCM47189 Wi-Fi · Broadcom BCM47189

OpenWrt · Broadcom BCM43217 / Broadcom BCM47189 Wi-Fi · Broadcom BCM47189 — Source documentation (openwrt.org)

Availability recorded by source
Discontinued

Hardware differences

Technical references

Security

Saved scan

From our saved security research.

Model advisories

Selected highlights

Prioritized by known exploitation, severity, then date.

CVSS 9.4 (v4.0)

AC9

Tenda AC9 POST Request fast_setting_internet_set stack-based overflow

CVE-2026-104611

Affected firmware
15.03.02.13
Fix
Fix details in the linked record
Read VulDB CVE record
Details and sources

A vulnerability was detected in Tenda AC9 15.03.02.13. Affected is an unknown function of the file /goform/fast_setting_internet_set of the component POST Request Handler. Performing a manipulation of the argument netWanType results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used.

VDB-412918 | Tenda AC9 POST Request fast_setting_internet_set stack-based overflow — AC9 (vuldb.com) ↗VDB-412918 | CTI Indicators (IOB, IOC, IOA) — AC9 (vuldb.com) ↗CVE-2026-104611 | CVE Analysis and Report — AC9 (vuldb.com) ↗Submit #962720 | Tenda RouterOS AC9V1.0BR_V15.03.2.13 Stack-based Buffer Overflow — AC9 (vuldb.com) ↗

CVSS 8.7 (v4.0)

AC9

Tenda AC9 POST Request WizardHandle decodePwd stack-based overflow

CVE-2026-6016

Affected firmware
15.03.02.13
Fix
Fix details in the linked record
Read VulDB CVE record
Details and sources

A vulnerability was found in Tenda AC9 15.03.02.13. The affected element is the function decodePwd of the file /goform/WizardHandle of the component POST Request Handler. Performing a manipulation of the argument WANS results in stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made public and could be used.

VDB-356572 | Tenda AC9 POST Request WizardHandle decodePwd stack-based overflow — AC9 (vuldb.com) ↗VDB-356572 | CTI Indicators (IOB, IOC, IOA) — AC9 (vuldb.com) ↗Submit #791829 | Tenda AC9 AC9 V1.0 V15.03.02.13 Buffer Overflow — AC9 (vuldb.com) ↗

CVSS 8.7 (v4.0)

AC9

Tenda AC9 POST Request QuickIndex formQuickIndex stack-based overflow

CVE-2026-6015

Affected firmware
15.03.02.13
Fix
Fix details in the linked record
Read VulDB CVE record
Details and sources

A vulnerability has been found in Tenda AC9 15.03.02.13. Impacted is the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. Such manipulation of the argument PPPOEPassword leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

VDB-356571 | Tenda AC9 POST Request QuickIndex formQuickIndex stack-based overflow — AC9 (vuldb.com) ↗VDB-356571 | CTI Indicators (IOB, IOC, IOA) — AC9 (vuldb.com) ↗Submit #791828 | Tenda AC9 AC9 V1.0 V15.03.02.13 Buffer Overflow — AC9 (vuldb.com) ↗

CVSS 8.7 (v4.0)

AC9

Tenda AC9/AC15 exeCommand formexeCommand buffer overflow

CVE-2025-10443

Affected firmware
15.03.05.14 15.03.05.18
Fix
Fix details in the linked record
Read VulDB CVE record
Details and sources

A vulnerability was identified in Tenda AC9 and AC15 15.03.05.14/15.03.05.18. This vulnerability affects the function formexeCommand of the file /goform/exeCommand. Such manipulation of the argument cmdinput leads to buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used.

VDB-323877 | Tenda AC9/AC15 exeCommand formexeCommand buffer overflow — AC9 (vuldb.com) ↗VDB-323877 | CTI Indicators (IOB, IOC, IOA) — AC9 (vuldb.com) ↗Submit #647840 | Tenda Tenda AC15、AC9 AC15 V1.0BR_V15.03.05.18 AC9 V1.0BR_V15.03.05.14 Buffer Overflow — AC9 (vuldb.com) ↗

CVSS 8.7 (v4.0)

AC9

Tenda AC9 HTTP POST Request SetRemoteWebCfg formSetSafeWanWebMan stack-based overflow

CVE-2025-5847

Affected firmware
15.03.02.13
Fix
Fix details in the linked record
Read VulDB CVE record
Details and sources

A vulnerability has been found in Tenda AC9 15.03.02.13 and classified as critical. Affected by this vulnerability is the function formSetSafeWanWebMan of the file /goform/SetRemoteWebCfg of the component HTTP POST Request Handler. The manipulation of the argument remoteIp leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

VDB-311593 | Tenda AC9 HTTP POST Request SetRemoteWebCfg formSetSafeWanWebMan stack-based overflow — AC9 (vuldb.com) ↗VDB-311593 | CTI Indicators (IOB, IOC, IOA) — AC9 (vuldb.com) ↗Submit #591362 | Tenda AC9 V1.0 V15.03.02.13 stack overflow — AC9 (vuldb.com) ↗
Check more security advisories for this device · CVE.org