Description
A null pointer dereference vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1 and USG FLEX series firmware versions from 4.50 through 5.37 Patch 1 could allow a LAN-based attacker to cause denial-of-service (DoS) conditions by downloading a crafted RAR compressed file onto a LAN-side host if the firewall has the “Anti-Malware” feature enabled.
CVSS breakdown
CVSS 3.1
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- Zyxel / ATP series firmwareversion 4.32 through 5.37 Patch 1 – version 4.32 through 5.37 Patch 1
- Zyxel / USG FLEX series firmwareversion 4.50 through 5.37 Patch 1 – version 4.50 through 5.37 Patch 1