CVE-2025-63462: Totolink a7000r Firmware

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Totolink A7000R v9.1.0u.6115_B20201022 was discovered to contain a stack overflow via the wifiOff parameter in the sub_421A04 function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

Affected products

• Totolink a7000r Firmware: version 9.1.0u.6115_b20201022 only

Published 2025-10-31. Last modified 2026-06-17.