CVE-2026-2140

Tenda TX9 setMacFilterCfg sub_4223E0 buffer overflow

Published: Feb 8, 2026Updated: Feb 10, 2026 Sources: CVE List NVD BDUCWE-119

8.8HIGH

Description

A vulnerability was identified in Tenda TX9 up to 22.03.02.10_multi. Affected by this issue is the function sub_4223E0 of the file /goform/setMacFilterCfg. Such manipulation of the argument deviceList leads to buffer overflow. The attack may be launched remotely. The exploit is publicly available and might be used.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-119 CWE-120

Affected Products

Tenda

commercial·CN

tx9 firmware

Networking Infrastructure

TX9

Networking Infrastructure

Shenzhen Tenda Technology Co., Ltd.

commercial·CNaka tenda

Tenda TX9 ProOn-premNetwork Device

Networking Infrastructure / router-switch

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Initial Access

Privilege Escalation

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References

https://github.com/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/setMacFilterCfg.md

github.com

https://github.com/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/setMacFilterCfg.md#poc

github.com

https://vuldb.com/?ctiid.344775

vuldb.com

and 4 more references View all →

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