What is CVE-2023-35137?

CVE-2023-35137 is a high-severity vulnerability in Zyxel Nas326 Firmware, classified under Improper Authentication. CVSS score: 7.5/10. Published 2023-11-30.

How severe is CVE-2023-35137?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Zyxel Nas326 Firmware

CVE-2023-35137

An improper authentication vulnerability in the authentication module of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to obtain system information b…

Vulnerability class: Broken Authentication

EPSS: 0.002 (36.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Zyxel Nas326 Firmware — versions V5.21(AAZF.14)C0
Zyxel Nas542 Firmware — versions V5.21(ABAG.11)C0

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for… (vendor-advisory)

Frequently asked questions

What is CVE-2023-35137?: CVE-2023-35137 is a high-severity vulnerability in Zyxel Nas326 Firmware, classified under Improper Authentication. CVSS score: 7.5/10. Published 2023-11-30.
How severe is CVE-2023-35137?: High severity. CVSS v3 base score is 7.5 out of 10.