CVE-2023-37927

HIGH

Zyxel NAS326/NAS542 < 5.21(AAZF.14)C0/< 5.21(ABAG.11)C0 Authenticated OS Command Injection

Title source: llm

Description

The improper neutralization of special elements in the CGI program 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 (2)

Core 2

Core References

Various Sources

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/

Patch, Vendor Advisory vendor-advisory

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products

Scores

CVSS v3 8.8

EPSS 0.0097

EPSS Percentile 76.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-78

Status published

Products (2)

zyxel/nas326_firmware < 5.21\(aazf.14\)c0

zyxel/nas542_firmware < 5.21\(abag.11\)c0

Published Nov 30, 2023

Tracked Since Feb 18, 2026