CVE-2026-2139 HIGH

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

Vendor Tenda
Product TX9
Weakness CWE-120
Published February 8, 2026
Last update February 23, 2026
View on NVD All CVEs

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

February 8, 2026 CVE published
February 23, 2026 Record updated