Description
A buffer overflow vulnerability in the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W) series firmware versions 4.16 through 5.37, USG20(W)-VPN series firmware versions 4.16 through 5.37, and VPN series firmware versions 4.30 through 5.37, could allow an authenticated local attacker to cause denial-of-service (DoS) conditions by executing the CLI command to dump system logs on an affected device.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- Zyxel / ATP series firmwareversions 4.32 through 5.37 – versions 4.32 through 5.37
- Zyxel / USG20(W)-VPN series firmwareversions 4.16 through 5.37 – versions 4.16 through 5.37
- Zyxel / USG FLEX 50(W) series firmwareversions 4.16 through 5.37 – versions 4.16 through 5.37
- Zyxel / USG FLEX series firmwareversions 4.50 through 5.37 – versions 4.50 through 5.37
- Zyxel / VPN series firmwareversions 4.30 through 5.37 – versions 4.30 through 5.37