CVE-2026-19789: Tenda AC1206 httpd web management interface WifiGuestSet set_wl_guest_iplist stack-based overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-14 · updated 2026-08-14
Weakness: CWE-119

Description

A vulnerability was determined in Tenda AC1206 15.03.06.23_multi_TD01. This vulnerability affects the function set_wl_guest_iplist of the file /goform/WifiGuestSet of the component httpd web management interface. This manipulation of the argument shareSpeed causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

Affected products

Tenda AC1206: 15.03.06.23_multi_TD01

References

https://github.com/lipenghai/iot_bug/blob/main/Tenda/AC12/2.md
https://vuldb.com/cve/CVE-2026-19789
https://vuldb.com/submit/868921
https://vuldb.com/vuln/389756
https://vuldb.com/vuln/389756/cti
https://www.tenda.com.cn/

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