CVE-2024-42058: Null Pointer Dereference

Published Sep 3, 2024
·
Updated

A null pointer dereference vulnerability in 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 V5.20 through V5.38, and USG20(W)-VPN series firmware versions from V5.20 through V5.38 could allow an unauthenticated attacker to cause DoS conditions by sending crafted packets to a vulnerable device.

Affected Software

19 affected components
All of the following
Zyxel ZLD>=4.32<5.39
Any of the following
Zyxel Atp100
Zyxel Atp100w
Zyxel ATP200
Zyxel ATP500
Zyxel Atp700
Zyxel ATP800
All of the following
Zyxel ZLD>=4.50<5.39
Any of the following
Zyxel Usg Flex 100
Zyxel Usg Flex 100ax
Zyxel Usg Flex 100w
Zyxel USG FLEX 200
Zyxel USG FLEX 50
Zyxel USG FLEX 500
Zyxel USG FLEX 700
All of the following
Zyxel ZLD>=4.20<5.39
Zyxel Usg Flex 50w
All of the following
Zyxel ZLD>=4.20<5.39
Zyxel Usg 20w-vpn

Event History

Sep 3, 2024
CVE Published
via MITRE·01:47 AM
Data Sourced
via MITRE·01:47 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·02:15 AM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2024-42058?

CVE-2024-42058 is classified as a null pointer dereference vulnerability, which can lead to denial of service.

2

How do I fix CVE-2024-42058?

To fix CVE-2024-42058, update your Zyxel ATP or USG FLEX firmware to the latest version beyond V5.39.

3

Which Zyxel products are affected by CVE-2024-42058?

CVE-2024-42058 affects Zyxel ATP series and USG FLEX series firmware versions from V4.32 to V5.38.

4

What can happen if I don't patch CVE-2024-42058?

Failing to patch CVE-2024-42058 may expose your devices to potential denial of service attacks.

5

Is there any workaround for CVE-2024-42058?

There are currently no known workarounds for CVE-2024-42058, so applying the firmware update is essential.

Company

Resources

Contact

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