CVE-2024-42058: Null Pointer Dereference
First published: Tue Sep 03 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.
Credit: security@zyxel.com.tw
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| Zyxel ZLD Firmware | >=4.32<5.39 | |
| Any of | ||
| Zyxel ATP100 Firmware | ||
| Zyxel ATP100W Firmware | ||
| Zyxel ATP200 firmware | ||
| Zyxel ATP500 Firmware | ||
| Zyxel ATP700 Firmware | ||
| Zyxel ATP800 Firmware | ||
| All of | ||
| Zyxel ZLD Firmware | >=4.50<5.39 | |
| Any of | ||
| Zyxel USG FLEX 100 | ||
| Zyxel USG FLEX 100ax firmware | ||
| Zyxel USG FLEX 100w firmware | ||
| Zyxel USG FLEX 200 firmware | ||
| Zyxel USG FLEX 50 | ||
| Zyxel USG FLEX 500 firmware | ||
| Zyxel USG FLEX 700 firmware | ||
| All of | ||
| Zyxel ZLD Firmware | >=4.20<5.39 | |
| Zyxel USG FLEX 50(W) series firmware | ||
| All of | ||
| Zyxel ZLD Firmware | >=4.20<5.39 | |
| Zyxel USG20 |
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Frequently Asked Questions
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.
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.
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.
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.
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.
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- collector/mitre-cve
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- agent/last-modified-date
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- agent/softwarecombine
- agent/tags
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- vendor/zyxel
- canonical/zyxel zld firmware
- version/zyxel zld firmware/4.32
- canonical/zyxel atp100 firmware
- canonical/zyxel atp100w firmware
- canonical/zyxel atp200 firmware
- canonical/zyxel atp500 firmware
- canonical/zyxel atp700 firmware
- canonical/zyxel atp800 firmware
- version/zyxel zld firmware/4.50
- canonical/zyxel usg flex 100
- canonical/zyxel usg flex 100ax firmware
- canonical/zyxel usg flex 100w firmware
- canonical/zyxel usg flex 200 firmware
- canonical/zyxel usg flex 50
- canonical/zyxel usg flex 500 firmware
- canonical/zyxel usg flex 700 firmware
- version/zyxel zld firmware/4.20
- canonical/zyxel usg flex 50(w) series firmware
- canonical/zyxel usg20