CVE-2023-28769

CRITICAL EXPLOITED

Zyxel DX5401-B0 - Buffer Overflow

Title source: llm

Description

The buffer overflow vulnerability in the library “libclinkc.so” of the web server “zhttpd” in Zyxel DX5401-B0 firmware versions prior to V5.17(ABYO.1)C0 could allow a remote unauthenticated attacker to execute some OS commands or to cause denial-of-service (DoS) conditions on a vulnerable device.

Exploits (1)

metasploit WORKING POC GOOD

rubypoclinux

https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/misc/zyxel_multiple_devices_zhttp_lan_rce.rb

View Code ZIP pw:eip

References (1)

[Vendor Advisory] https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities

Scores

CVSS v3 9.8

EPSS 0.7032

EPSS Percentile 98.7%

Attack Vector NETWORK

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

Details

VulnCheck KEV 2024-11-01

CWE

CWE-120

Status published

Products (1)

zyxel/dx5401-b0_firmware < 5.17\(abyo.1\)c0

Published Apr 27, 2023

Tracked Since Feb 18, 2026