BaseFortify

Publication date: 2025-10-31

Last updated on: 2025-11-05

Assigner: MITRE

Description

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.

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Meta Information

Published

2025-10-31

Last Modified

2025-11-05

Generated

2026-07-06

AI Q&A

2025-11-01

EPSS Evaluated

2026-07-05

NVD

CVE-2025-63462

Affected Vendors & Products

Vendor	Product	Version / Range
totolink	a7000r_firmware	9.1.0u.6115_b20201022
totolink	a7000r	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-121	A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

Attack-Flow Graph

Executive Summary

This vulnerability is a stack overflow in the Totolink A7000R router firmware version 9.1.0u.6115_B20201022. It occurs via the wifiOff parameter in the sub_421A04 function. An attacker can send a specially crafted request that triggers this overflow, causing the device to crash or become unresponsive.

Impact Analysis

The vulnerability can cause a Denial of Service (DoS) on the affected device, meaning the router could stop functioning properly or become unavailable, disrupting network connectivity.

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