D-Link DIR-853 A1 Stack-Based Buffer Overflow Vulnerability in QuickVPN Settings Module

Vulnerability

A stack-based buffer overflow vulnerability has been identified in the D-Link DIR-853 A1 router, specifically in firmware version 1.20B07. The vulnerability arises in the SetQuickVPNSettings module, where the PSK parameter is processed.

Impact

Exploitation of this vulnerability leads to a stack-based buffer overflow, which can commonly result in arbitrary code execution or causing the device to crash.

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.