CVE-2025-5839: Tenda AC9 POST Request AdvSetLanip fromadvsetlanip buffer 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: 2025-06-07 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability, which was classified as critical, has been found in Tenda AC9 15.03.02.13. Affected by this issue is the function fromadvsetlanip of the file /goform/AdvSetLanip of the component POST Request Handler. The manipulation of the argument lanMask leads to buffer overflow. The attack may 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-fromadvsetlanip-20adf0aa11858027b7c3c2f4e44bb867
https://vuldb.com/?ctiid.311582
https://vuldb.com/?id.311582
https://vuldb.com/?submit.591369
https://www.tenda.com.cn/

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