CVE-2025-5847: Tenda AC9 HTTP POST Request SetRemoteWebCfg formSetSafeWanWebMan stack-based overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-06-08 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability has been found in Tenda AC9 15.03.02.13 and classified as critical. Affected by this vulnerability is the function formSetSafeWanWebMan of the file /goform/SetRemoteWebCfg of the component HTTP POST Request Handler. The manipulation of the argument remoteIp leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Affected products

Tenda AC9: 15.03.2.13

References

https://candle-throne-f75.notion.site/Tenda-AC9-formSetSafeWanWebMan-20adf0aa118580a29e80cef9109c947a
https://vuldb.com/?ctiid.311593
https://vuldb.com/?id.311593
https://vuldb.com/?submit.591362
https://www.tenda.com.cn/

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