CVE-2024-11667

HIGH CISA KEV
Published Nov 27, 2024 Modified Oct 27, 2025 CWE-22

Description

A directory traversal vulnerability in the web management interface of Zyxel ATP series firmware versions V5.00 through V5.38, USG FLEX series firmware versions V5.00 through V5.38, USG FLEX 50(W) series firmware versions V5.10 through V5.38, and USG20(W)-VPN series firmware versions V5.10 through V5.38 could allow an attacker to download or upload files via a crafted URL.

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CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA Known Exploited Vulnerability

This vulnerability is actively exploited in the wild.

Added: Dec 3, 2024 Remediation due: Dec 24, 2024 Known ransomware use

Weakness Type (CWE)

CWE-22 Path Traversal

Affected Products

Vendor Product
zyxel zld
zyxel atp
zyxel atp100
zyxel atp100w
zyxel atp200
zyxel atp500
zyxel atp700
zyxel atp800
zyxel zld
zyxel usg_flex
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
zyxel zld
zyxel usg_flex_50w
zyxel zld
zyxel usg_20w-vpn

References

Frequently Asked Questions

What is CVE-2024-11667? +
A directory traversal vulnerability in the web management interface of Zyxel ATP series firmware versions V5.00 through V5.38, USG FLEX series firmware versions V5.00 through V5.38, USG FLEX 50(W) series firmware versions V5.10 through V5.38, and USG20(W)-VPN series firmware versions V5.10 through V5.38 could allow an attacker to download or upload files via a crafted URL. It has a CVSS v3.1 base score of 7.5 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.
How severe is CVE-2024-11667? +
CVE-2024-11667 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2024-11667? +
CVE-2024-11667 affects products from zyxel, specifically: atp, atp100, atp100w, atp200, atp500, atp700, atp800, usg_20w-vpn, usg_flex, usg_flex_100, usg_flex_100ax, usg_flex_100w, usg_flex_200, usg_flex_50, usg_flex_500, usg_flex_50w, usg_flex_700, zld. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-11667? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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