CVE-2023-33010 — Zyxel Multiple Firewalls Buffer Overflow Vulnerability
CVE-2023-33010: Zyxel Multiple Firewalls Buffer Overflow Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Zyxel |
| Product | Multiple Firewalls |
| Date added | 2023-06-05 |
| Due date | 2023-06-26 |
| Ransomware campaign use | Unknown |
Description
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.
Required action (CISA)
Apply updates per vendor instructions.
Notes
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-buffer-overflow-vulnerabilities-of-firewalls; https://nvd.nist.gov/vuln/detail/CVE-2023-33010
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-33010
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog