CVE-2023-37928

Severity

HIGH

CVSS

8.8

EPSS

0.602

Risk score

56.27

CISA KEV

PoC

Published

2023-11-30

Modified

2025-02-13

First seen

2026-08-07

Aliases

EUVD-2023-41781, GHSA-2GQH-F22G-JH9G

Products

Zyxel:NAS326 firmware V5.21(AAZF.14)C0, Zyxel:NAS542 firmware V5.21(ABAG.11)C0

Sources

euvd EUVD-2023-41781

Description

A post-authentication command injection vulnerability in the WSGI server of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an authenticated attacker to execute some operating system (OS) commands by sending a crafted URL to a vulnerable device.

References

https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-41781
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products
https://bugprove.com/knowledge-hub/cve-2023-37927-and-cve-2023-37928-multiple-post-auth-blind-os-command-and-python-code-injection-vulnerabilities-in-zyxel-s-nas-326-devices/