CVE-2024-42058

High

Description

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.

SeverityHigh

CVSS7.5

Exploit probability—

Product

Zyxel Zld

PublishedSep 3, 2024

First seenSep 3, 2024

Weakness typeCWE-476NULL pointer dereference

How to fix

Update

zyxel zld5.39 or later

Vendor advisories

zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-09-03-2024

Affected products

Product	Affected versions	Fixed in
zyxel zld	4.32 ≤ v < 5.39, 4.50 ≤ v < 5.39, 4.20 ≤ v < 5.39	5.39

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