CVE-2025-3259: Tenda RX3 SetOnlineDevName formSetDeviceName stack-based overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-04-04 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability, which was classified as critical, has been found in Tenda RX3 16.03.13.11. This issue affects the function formSetDeviceName of the file /goform/SetOnlineDevName. The manipulation of the argument devName leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Affected products

Tenda RX3: 16.03.13.11_multi

References

https://sixth-action-50e.notion.site/Tenda-RX3-Buffer-Overflow-1c9f6468377380a2977cd6c3a81f453c?pvs=4
https://vuldb.com/?ctiid.303329
https://vuldb.com/?id.303329
https://vuldb.com/?submit.549199
https://www.tenda.com.cn/
https://sixth-action-50e.notion.site/Tenda-RX3-Buffer-Overflow-1c9f6468377380a2977cd6c3a81f453c

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