PT-2026-6966 · Tenda · Tenda Tx9

Kdb3169 · Published 2026-01-27 · Updated 2026-02-13 · CVE-2026-2139

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Tenda TX9 versions up to 22.03.02.10 multi

Description A flaw exists in the Tenda TX9 device, specifically within the sub 432580 function located in the /goform/fast setting wifi set file. Manipulation of the ssid argument can lead to a buffer overflow. This issue can be exploited remotely. The details of the exploit have been publicly disclosed.

Recommendations Versions up to 22.03.02.10 multi are affected. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-120

Related Identifiers

BDU:2026-02489

CVE-2026-2139

Affected Products

Tenda Tx9

References · 14

• 🔥 https://github.com/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/fast_setting_wifi_set.md · Exploit
• 🔥 https://github.com/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/fast_setting_wifi_set.md#poc · Exploit
• https://osv.dev/vulnerability/CVE-2026-2139 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-2139 · Security Note
• https://bdu.fstec.ru/vul/2026-02489 · Security Note
• https://tenda.com.cn · Note
• https://vuldb.com/?ctiid.344774 · Note
• https://t.me/CVEtracker/44089 · Telegram Post
• https://vuldb.com/?id.344774 · Note
• https://twitter.com/CveFindCom/status/2020893109605794013 · Twitter Post
• https://twitter.com/cracbot/status/2022264555188208082 · Twitter Post
• https://vuldb.com/?submit.747250 · Note
• https://t.me/cveNotify/151286 · Telegram Post
• https://twitter.com/CVEnew/status/2020387982256271787 · Twitter Post