What is CVE-2023-22923?

CVE-2023-22923 is a medium-severity vulnerability in Zyxel Nbg-418n, classified under Use of Externally-Controlled Format String. CVSS score: 6.5/10. Published 2023-05-01.

How severe is CVE-2023-22923?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Zyxel Nbg-418n

CVE-2023-22923

A format string vulnerability in a binary of the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 could allow a remote authenticated attacker to cause denial-of-service (DoS) conditions on an affected device.

EPSS: 0.008 (52.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Zyxel Nbg-418n — versions v2
Zyxel Nbg-418n_firmware
Zyxel Nbg-418n V2 Firmware — versions < V1.00(AARP.14)C0

Weakness classification (CWE)

CWE-134 — Use of Externally-Controlled Format String

References

security@zyxel.com.tw (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-22923?: CVE-2023-22923 is a medium-severity vulnerability in Zyxel Nbg-418n, classified under Use of Externally-Controlled Format String. CVSS score: 6.5/10. Published 2023-05-01.
How severe is CVE-2023-22923?: Medium severity. CVSS v3 base score is 6.5 out of 10.