CVE-2021-4039 EXPLOIT
9.8
CRITICAL · CVSS 3.1 · EPSS 71% (pctl 99)
Patch early
A public exploit exists.
Description
A command injection vulnerability in the web interface of the Zyxel NWA-1100-NH firmware could allow an attacker to execute arbitrary OS commands on the device.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 71.05% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-78 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2022-03-01 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| zyxel | nwa1100-nh |
| zyxel | nwa1100-nh firmware |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Zyxel NWA-1100-NH - Command Injection | 2022-04-19 |
References
- http://packetstormsecurity.com/files/166752/Zyxel-NWA-1100-NH-Command-Injection.html
- https://www.zyxel.com/support/OS-command-injection-vulnerability-of-NWA1100-NH-access-point.shtml
- http://packetstormsecurity.com/files/166752/Zyxel-NWA-1100-NH-Command-Injection.html
- https://www.zyxel.com/support/OS-command-injection-vulnerability-of-NWA1100-NH-access-point.shtml
→ the Explorer · watch your stack · NVD