Zyxel Multiple Firewalls Buffer Overflow Vulnerability
Zyxel 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.
- Vendor
- Zyxel
- Product
- Multiple Firewalls
- CVSS
- 9.8
- EPSS (exploit probability)
- 28.8%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Published
Zyxel 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.
Added to CISA’s Known Exploited Vulnerabilities catalog on 2023-06-05. Required action per CISA: Apply updates per vendor instructions. Due date: 2023-06-26.
This is an auto-synced KEV catalog record pending a full 0dayNews write-up — see CISA’s KEV catalog and the NVD record linked above for primary sources.