D-Link DIR-853 Stack-Based Buffer Overflow Vulnerability in IPv6 PPPoE Settings Module

Vulnerability

A stack-based buffer overflow vulnerability has been identified in the D-Link DIR-853 A1 router running firmware 1.20B07. The issue arises in the SetIPv6PppoeSettings module, specifically through the IPv6_PppoePassword parameter.

Impact

Exploitation of this vulnerability leads to a stack-based buffer overflow, which can potentially allow for arbitrary code execution or cause a denial-of-service condition by crashing the device.

Added: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
5.7
impact
7.5
exploitability
8.4
remediation
0.0
relevance
0.0
threat
6.4
urgency
2.9
incentive
5.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.