CVE-2024-29972

CRITICAL EXPLOITED NUCLEI

Zyxel NAS326 <V5.21(AAZF.17)C0 - Command Injection

Title source: llm

Exploitation Summary

CVE-2024-29972 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 2 public exploits from researchers including Pommaq, WanLiChangChengWanLiChang. A Nuclei detection template is also available.

AI-analyzed exploit summary This repository contains a functional exploit PoC for multiple ZyXEL NAS vulnerabilities (CVE-2024-29972, CVE-2024-29973, CVE-2024-29974, CVE-2024-29975, CVE-2024-29976), including command injection, privilege escalation, and backdoor access. The exploit leverages Python code injection and shell command execution to achieve RCE and LPE.

Description

** UNSUPPORTED WHEN ASSIGNED ** The command injection vulnerability in the CGI program "remote_help-cgi" in Zyxel NAS326 firmware versions before V5.21(AAZF.17)C0 and NAS542 firmware versions before V5.21(ABAG.14)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted HTTP POST request.

Exploits (2)

nomisec WORKING POC 4 stars

by Pommaq · remote

https://github.com/Pommaq/CVE-2024-29972-CVE-2024-29976-CVE-2024-29973-CVE-2024-29975-CVE-2024-29974-poc

View Code ZIP pw:eip

This repository contains a functional exploit PoC for multiple ZyXEL NAS vulnerabilities (CVE-2024-29972, CVE-2024-29973, CVE-2024-29974, CVE-2024-29975, CVE-2024-29976), including command injection, privilege escalation, and backdoor access. The exploit leverages Python code injection and shell command execution to achieve RCE and LPE.

Classification

Working Poc 95%

Attack Type

Rce | Lpe | Auth Bypass | Info Leak

Complexity

Moderate

Reliability

Reliable

Target: ZyXEL NAS devices (e.g., NAS326)

No auth needed

Prerequisites: Network access to the target device · Vulnerable ZyXEL NAS firmware

MITRE ATT&CK

T1059 - Command and Scripting Interpreter T1068 - Exploitation for Privilege Escalation T1190 - Exploit Public-Facing Application

devstral-2 · analyzed Feb 18, 2026 Full analysis →

nomisec WORKING POC 1 stars

by WanLiChangChengWanLiChang · remote

https://github.com/WanLiChangChengWanLiChang/CVE-2024-29972

View Code ZIP pw:eip

This repository contains a functional exploit for CVE-2024-29972, targeting Zyxel NAS devices. The exploit leverages a backdoor account (NsaRescueAngel) and combines it with CVE-2024-29973 to achieve unauthorized access and command execution.

Classification

Working Poc 95%

Attack Type

Auth Bypass

Complexity

Moderate

Reliability

Reliable

Target: Zyxel NAS326

No auth needed

Prerequisites: Target device must be a Zyxel NAS326 · Network access to the target device

MITRE ATT&CK

T1078 - Valid Accounts T1059 - Command and Scripting Interpreter

devstral-2 · analyzed Feb 18, 2026 Full analysis →

Nuclei Templates (1)

Zyxel NAS326 Firmware < V5.21(AAZF.17)C0 - NsaRescueAngel Backdoor Account

CRITICALVERIFIEDby gy741

FOFA: app="ZYXEL-NAS326"

References (2)

Core 2

Core References

Exploit, Third Party Advisory

https://outpost24.com/blog/zyxel-nas-critical-vulnerabilities/

Vendor Advisory vendor-advisory

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-nas-products-06-04-2024

Scores

CVSS v3 9.8

EPSS 0.8922

EPSS Percentile 99.8%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact total

Details

VulnCheck KEV 2025-06-07

CWE

CWE-78

Status published

Products (2)

zyxel/nas326_firmware < 5.21\(aazf.17\)c0

zyxel/nas542_firmware < 5.21\(abag.14\)c0

Published Jun 04, 2024

Tracked Since Feb 18, 2026