May 16, 2022 · Applied Cybernetics Group
CVE-2022-30525 — Zyxel Multiple Firewalls
Zyxel Multiple Firewalls OS Command Injection Vulnerability
- Added to KEV
2022-05-16- Federal due date
2022-06-06- Vendor
- Zyxel
- Product
- Multiple Firewalls
- EPSS
- 100.0th percentile (score 0.944, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2022-30525
CISA short description
A command injection vulnerability in the CGI program of some Zyxel firewall versions could allow an attacker to modify specific files and then execute some OS commands on a vulnerable device.
Required action
Apply updates per vendor instructions.