Product / Zyxel
Zyxel Multiple Firewalls in CISA KEV
Answer CISA's KEV catalog lists 5 vulnerabilities in Zyxel Multiple Firewalls as of catalog 2026.09.23, 38.5% of Zyxel's 13 entries. First added 2022-05-16, latest 2024-12-03; 1 ransomware-linked.
- KEV entries
- 5
- Ransomware: known
- 120%
- First added
- 2022-05-16
- Latest added
- 2024-12-03
- Median days to due
- 21
- Open deadlines
- 0federal
TAdditions by year
| Year | Added |
|---|---|
| 2021 | 0 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 0 |
| 2026 | 0 |
WWeaknesses
| CWE | Entries | Share |
|---|---|---|
| CWE-120 Classic buffer overflow | 2 | 40% |
| CWE-78 OS command injection | 2 | 40% |
| CWE-22 Path traversal | 1 | 20% |
EAll entries
| CVE | Vulnerability | Added | Due | Ransomware | CWE |
|---|---|---|---|---|---|
| CVE-2024-11667 | Zyxel Multiple Firewalls Path Traversal Vulnerability | Known | CWE-22 | ||
| CVE-2023-33010 | Zyxel Multiple Firewalls Buffer Overflow Vulnerability | Unknown | CWE-120 | ||
| CVE-2023-33009 | Zyxel Multiple Firewalls Buffer Overflow Vulnerability | Unknown | CWE-120 | ||
| CVE-2023-28771 | Zyxel Multiple Firewalls OS Command Injection Vulnerability | Unknown | CWE-78 | ||
| CVE-2022-30525 | Zyxel Multiple Firewalls OS Command Injection Vulnerability | Unknown | CWE-78 |
Cite this
CISA's KEV catalog lists 5 vulnerabilities in Zyxel Multiple Firewalls. Source: Telemetry analysis of the CISA Known Exploited Vulnerabilities catalog, version 2026.09.23 (released 2026-09-23). https://glide-telemetry.pages.dev/products/zyxel-multiple-firewalls/
Source: CISA KEV catalog v2026.09.23, released 2026-09-23. Windows end 2026-09-23.