What is CVE-2022-43390?

CVE-2022-43390 is a medium-severity vulnerability in Zyxel Ax7501-b0, classified under OS Command Injection. CVSS score: 5.4/10. Published 2023-01-11.

How severe is CVE-2022-43390?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2022-43390 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Zyxel Ax7501-b0

CVE-2022-43390

A command injection vulnerability in the CGI program of Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an authenticated attacker to execute some OS commands on a vulnerable device by sending a crafted HTTP request.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.011 (61.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

karimhabush/cyberowl

References

security@zyxel.com.tw (Vendor Advisory)

Frequently asked questions

What is CVE-2022-43390?: CVE-2022-43390 is a medium-severity vulnerability in Zyxel Ax7501-b0, classified under OS Command Injection. CVSS score: 5.4/10. Published 2023-01-11.
How severe is CVE-2022-43390?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2022-43390 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.