CVE-2023-35136

Medium

Description

An improper input validation vulnerability in the “Quagga” package of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W) series firmware versions 4.16 through 5.37, USG20(W)-VPN series firmware versions 4.16 through 5.37, and VPN series firmware versions 4.30 through 5.37, could allow an authenticated local attacker to access configuration files on an affected device.

SeverityMedium

CVSS5.5

Exploit probability—

Product

Zyxel Zld

PublishedNov 28, 2023

First seenNov 28, 2023

Weakness typeCWE-20Improper input validation

How to fix

Vendor advisories

zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-aps

Affected products

Product	Affected versions	Fixed in
zyxel zld	4.32 ≤ v ≤ 5.37, 4.50 ≤ v ≤ 5.37, 4.16 ≤ v ≤ 5.37, 4.30 ≤ v ≤ 5.37	—

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