CVE intelligence and bounded remediation

CVE-2024-9197 — Zyxel Dx3300-T0 Firmware security vulnerability

Medium CVSS 4.9

A post-authentication buffer overflow vulnerability in the parameter "action" of the CGI program in Zyxel VMG3625-T50B firmware versions through V5.50(ABPM.9.2)C0 could allow an authenticated attacker with administrator privileges to cause a temporary denial of service (DoS) condition against the web management interface by sending a crafted HTTP GET request to a vulnerable device if the function ZyEE is enabled.

Severity
Medium
CVSS
4.9 (3.1)
Published
2024-12-03
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-120

Affected products

  • zyxel / dx3300-t0_firmware
  • zyxel / dx3300-t1_firmware
  • zyxel / dx3301-t0_firmware
  • zyxel / dx4510-b0_firmware
  • zyxel / dx4510-b1_firmware
  • zyxel / dx5401-b0_firmware

Showing 6 representative product identities from 37 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Buffer bounds, memory safety, and memory corruption

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Identify affected native-code versions, build flags, architectures, parsers, codecs, drivers, and input paths in all shipped artifacts.
  • Determine whether untrusted data reaches the affected routine and the process privilege, sandbox, and network exposure.
  • Confirm statically linked, vendored, firmware, and platform-provided copies, not only package-manager records.

Remediate safely

  • Apply the maintained upstream correction or replace the affected component, then rebuild every dependent artifact from clean inputs.
  • Adopt bounds-checked interfaces, validated sizes and integer conversions, clear ownership, and memory-safe components where practical.
  • Enable supported compiler and runtime hardening and add sanitized tests and fuzz regression seeds derived from non-weaponized fixtures.

Authoritative sources

Complete CVE record and remediation plan

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