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Vulnerability · Published Sep 3, 2024 · Assigned by Zyxel

CVE-2024-6343

Medium 4.9

In plain English

A medium-severity buffer overflow in ATP series firmware from Zyxel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).

Severity (CVSS 3.1)4.9Medium
Exploit odds (30 days)0.6%top 50.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A buffer overflow vulnerability in the CGI program of Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4.50 through V5.38, USG FLEX 50(W) series firmware versions from V4.16 through V5.38, and USG20(W)-VPN series firmware versions from V4.16 through V5.38 could allow an authenticated attacker with administrator privileges to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.

Affected products (as reported)

VendorProductVersions
Zyxel ATP series firmware versions V4.32 through V5.38
Zyxel USG FLEX series firmware versions V4.50 through V5.38
Zyxel USG FLEX 50(W) series firmware versions V4.16 through V5.38
Zyxel USG20(W)-VPN series firmware versions V4.16 through V5.38

Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

References