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Zyxel WRE6505 V2 Authentication Bypass Vulnerability via Brute-Force Attack

Vulnerability

A vulnerability allowing adjacent attackers on the LAN to brute-force passwords and bypass authentication has been identified in the web management interface of the Zyxel WRE6505 V2 firmware version V1.00(ABDV.3)C0. This issue arises from an improper restriction on excessive authentication attempts.

Impact

Exploitation of this vulnerability could lead to unauthorized access by bypassing authentication requirements.

Added: May 12, 2026, 4:20 AM
Updated: May 12, 2026, 4:20 AM

Vulnerability Rating

Custom Algorithm
spread
4.2
impact
5.0
exploitability
4.7
remediation
0.0
relevance
8.1
threat
0.0
urgency
2.9
incentive
0.0

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