CVE-2024-42057

HIGH EPSS 67.3%
Published Sep 3, 20241y ago · Modified Jun 17, 20261w ago
8.1 CVSS 3.1
High
Find Similar
Published Sep 3, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

A command injection vulnerability in the IPSec VPN feature 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 unauthenticated attacker to execute some OS commands on an affected device by sending a crafted username to the vulnerable device. Note that this attack could be successful only if the device was configured in User-Based-PSK authentication mode and a valid user with a long username exceeding 28 characters exists.

CVSS Details

Base Score
8.1
Exploitability
2.2
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
67.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-78 OS Command Injection Injection

Affected Products 19

VendorProductVersionRange
zyxelzld*≥4.32  –  <5.39
zyxelatp100*any
zyxelatp100w*any
zyxelatp200*any
zyxelatp500*any
zyxelatp700*any
zyxelatp800*any
zyxelzld*≥4.50  –  <5.39
zyxelusg_flex_100*any
zyxelusg_flex_100ax*any
zyxelusg_flex_100w*any
zyxelusg_flex_200*any
zyxelusg_flex_50*any
zyxelusg_flex_500*any
zyxelusg_flex_700*any
zyxelzld*≥4.16  –  <5.39
zyxelusg_flex_50w*any
zyxelzld*≥4.16  –  <5.39
zyxelusg_20w-vpn*any

References 1

  • zyxel.com https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-09-03-2024
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.