What is CVE-2023-22920?

CVE-2023-22920 is a critical-severity vulnerability in Zyxel Lte3202-M437, classified under Improper Access Control. CVSS score: 9.8/10. Published 2023-02-21.

How severe is CVE-2023-22920?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Zyxel Lte3202-M437

CVE-2023-22920

A security misconfiguration vulnerability exists in the Zyxel LTE3316-M604 firmware version V2.00(ABMP.6)C0 due to a factory default misconfiguration intended for testing purposes. A remote attacker could leverage this vulnerability to access an affected device using Telnet.

EPSS: 0.008 (54.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Zyxel Lte3202-m437
Zyxel Lte3202-m437_firmware — versions 1.00\(abwf.1\)c0
Zyxel Lte3316-m604 — versions V2.00(ABMP.6)C0
Zyxel Lte3316-m604_firmware — versions 2.00\(abmp.6\)c0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

security@zyxel.com.tw (Vendor Advisory)

Frequently asked questions

What is CVE-2023-22920?: CVE-2023-22920 is a critical-severity vulnerability in Zyxel Lte3202-M437, classified under Improper Access Control. CVSS score: 9.8/10. Published 2023-02-21.
How severe is CVE-2023-22920?: Critical severity. CVSS v3 base score is 9.8 out of 10.