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Alert

Zyxel Multiple Firewalls Path Traversal Vulnerability

Multiple Zyxel firewalls contain a path traversal vulnerability in the web management interface that could allow an attacker to download or upload files vi

Security · HIGH
Source: CISA Known Exploited VulnerabilitiesMay 2, 2026, 4:51 PMSecurityhigh

Full content

Multiple Zyxel firewalls contain a path traversal vulnerability in the web management interface that could allow an attacker to download or upload files via a crafted URL.

Vendor: Zyxel

Product: Multiple Firewalls

Due date: 2024-12-24

Known ransomware use: Known

Why it matters

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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