5 source-linked records in the current knowledge graph.
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. Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA KEV ↗ · unattributed attributionZyxel ATP, USG FLEX, USG FLEX 50(W), USG20(W)-VPN, VPN, and ZyWALL/USG firewalls contain a buffer overflow vulnerability in the notification function that could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and remote code execution on an affected device. Required action: Apply updates per vendor instructions.
CISA KEV ↗ · unattributed attributionZyxel ATP, USG FLEX, USG FLEX 50(W), USG20(W)-VPN, VPN, and ZyWALL/USG firewalls contain a buffer overflow vulnerability in the ID processing function that could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and remote code execution on an affected device. Required action: Apply updates per vendor instructions.
CISA KEV ↗ · unattributed attributionZyxel ATP, USG FLEX, VPN, and ZyWALL/USG firewalls allow for improper error message handling which could allow an unauthenticated attacker to execute OS commands remotely by sending crafted packets to an affected device. Required action: Apply updates per vendor instructions.
CISA KEV ↗ · unattributed attributionA command injection vulnerability in the CGI program of some Zyxel firewall versions could allow an attacker to modify specific files and then execute some OS commands on a vulnerable device. Required action: Apply updates per vendor instructions.
CISA KEV ↗ · unattributed attribution