CVE-2023-33010
Zyxel Multiple Firewalls Buffer Overflow Vulnerability
Summary
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.
Affected software
Vendor: Zyxel · Product: Multiple Firewalls
Weakness types (CWE):
What to do
This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.
Related vulnerabilities in Zyxel
| CVE | Name | EPSS | Exploited |
|---|---|---|---|
| CVE-2020-9054 | Zyxel Multiple NAS Devices OS Command Injection Vulnerability | 100.0% | Yes |
| CVE-2022-30525 | Zyxel Multiple Firewalls OS Command Injection Vulnerability | 99.9% | Yes |
| CVE-2023-28771 | Zyxel Multiple Firewalls OS Command Injection Vulnerability | 99.3% | Yes |
| CVE-2017-18368 | Zyxel P660HN-T1A Routers Command Injection Vulnerability | 94.5% | Yes |
| CVE-2020-29583 | Zyxel Multiple Products Use of Hard-Coded Credentials Vulnerability | 90.0% | Yes |
| CVE-2023-27992 | Zyxel Multiple NAS Devices Command Injection Vulnerability | 84.2% | Yes |
| CVE-2017-6884 | Zyxel EMG2926 Routers Command Injection Vulnerability | 37.6% | Yes |
| CVE-2023-33009 | Zyxel Multiple Firewalls Buffer Overflow Vulnerability | 28.1% | Yes |
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