Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2026-2139— Tenda TX9 fast_setting_wifi_set sub_432580 buffer overflow

CVSS 8.8 · High EPSS 0.11% · P29
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-2139

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Tenda TX9 fast_setting_wifi_set sub_432580 buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was determined in Tenda TX9 up to 22.03.02.10_multi. Affected by this vulnerability is the function sub_432580 of the file /goform/fast_setting_wifi_set. This manipulation of the argument ssid causes buffer overflow. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Tenda TX9 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda TX9是中国腾达（Tenda）公司的一个无线路由器。 Tenda TX9 22.03.02.10_multi及之前版本存在安全漏洞，该漏洞源于对文件/goform/fast_setting_wifi_set内函数sub_432580的参数ssid的错误操作，可能导致缓冲区溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
TendaTX9 22.03.02.10_multi cpe:2.3:o:tenda:tx9_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-2139

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-2139

请登录查看更多情报信息。

Same Patch Batch · Tenda · 2026-02-08 · 13 CVEs total

CVE-2026-21878.8 HIGHTenda RX3 formSetQosBand set_qosMib_list stack-based overflow
CVE-2026-21868.8 HIGHTenda RX3 SetIpMacBind fromSetIpMacBind stack-based overflow
CVE-2026-21858.8 HIGHTenda RX3 MAC Filtering Configuration Endpoint setBlackRule set_device_name stack-based ov
CVE-2026-21818.8 HIGHTenda RX3 openSchedWifi stack-based overflow
CVE-2026-21808.8 HIGHTenda RX3 fast_setting_wifi_set stack-based overflow
CVE-2026-21408.8 HIGHTenda TX9 setMacFilterCfg sub_4223E0 buffer overflow
CVE-2026-21388.8 HIGHTenda TX9 SetStaticRouteCfg sub_42D03C buffer overflow
CVE-2026-21378.8 HIGHTenda TX3 SetIpMacBind buffer overflow
CVE-2026-21927.2 HIGHTenda AC9 formGetRebootTimer stack-based overflow
CVE-2026-21917.2 HIGHTenda AC9 formGetDdosDefenceList stack-based overflow
CVE-2026-21485.3 MEDIUMTenda AC21 Web Management DownloadFlash information disclosure
CVE-2026-21475.3 MEDIUMTenda AC21 Web Management DownloadLog information disclosure

IV. Related Vulnerabilities

Same product: TX9
Same vendor: Tenda
Same weakness: CWE-120

V. Comments for CVE-2026-2139

No comments yet

Leave a comment