The vulnerability of the sub_421A04() function in TOTOLINK A7000R router microprogramming software allows a intruder to trigger a service failure.

The vulnerability of sub421A04 in the microprogramming software of TOTOLINK A7000R routers is related to buffer overflow in the stack. Exploiting this vulnerability can allow an attacker to cause a service failure...

TOTOLINK A7000R sub_421A04 function stack buffer overflow vulnerability

TOTOLINK A7000R is a wireless router from China's Gion Electronics TOTOLINK that supports WiFi7 technology for home or small business network environments. The TOTOLINK A7000R suffers from a stack buffer overflow vulnerability, which stems from the failure of the wifiOff parameter in the sub421A0...

EUVD-2025-37383

Totolink A7000R v9.1.0u.6115B20201022 was discovered to contain a stack overflow via the wifiOff parameter in the sub421A04 function. This vulnerability allows attackers to cause a Denial of Service DoS via a crafted request...

CVE-2025-63462

Totolink A7000R v9.1.0u.6115B20201022 was discovered to contain a stack overflow via the wifiOff parameter in the sub421A04 function. This vulnerability allows attackers to cause a Denial of Service DoS via a crafted request...

CVE-2025-63462

Totolink A7000R v9.1.0u.6115B20201022 was discovered to contain a stack overflow via the wifiOff parameter in the sub421A04 function. This vulnerability allows attackers to cause a Denial of Service DoS via a crafted request...

CVE-2025-63462: Stack-based Buffer Overflow

Totolink A7000R v9.1.0u.6115B20201022 was discovered to contain a stack overflow via the wifiOff parameter in the sub421A04 function. This vulnerability allows attackers to cause a Denial of Service DoS via a crafted request...

CVE-2025-63462

Totolink A7000R v9.1.0u.6115B20201022 was discovered to contain a stack overflow via the wifiOff parameter in the sub421A04 function. This vulnerability allows attackers to cause a Denial of Service DoS via a crafted request...