CVE-2024-11667

Summary

CVE	CVE-2024-11667
State	PUBLISHED
Assigner	Zyxel
Source Priority	CVE Program / NVD first with legacy fallback
Published	2024-11-27 10:15:04 UTC
Updated	2026-08-05 05:16:40 UTC
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.

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

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

EPSS: 0.030170000 probability, percentile 0.861090000 (date 2026-08-04)

CISA KEV: Listed on 2024-12-03; due 2024-12-24; ransomware use Known

Problem Types: CWE-22 | CWE-22 CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Version	Source	Type	Score	Severity	Vector
3.1	[email protected]	Primary	9.8	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
3.1	[email protected]	Secondary	7.5	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`
3.1	CNA	CVSS	7.5	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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

Vendor	Zyxel
Product	Multiple Firewalls
Name	Zyxel Multiple Firewalls Path Traversal Vulnerability
Required Action	Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes	https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-protecting-against-recent-firewall-threats-11-21-2024 ; https://nvd.nist.gov/vuln/detail/CVE-2024-11667

Type	Vendor	Product	Version	Update	Edition	Language
Hardware	Zyxel	Atp	-	All	All	All
Hardware	Zyxel	Atp100	-	All	All	All
Hardware	Zyxel	Atp100w	-	All	All	All
Hardware	Zyxel	Atp200	-	All	All	All
Hardware	Zyxel	Atp500	-	All	All	All
Hardware	Zyxel	Atp700	-	All	All	All
Hardware	Zyxel	Atp800	-	All	All	All
Operating System	Zyxel	Zld	All	All	All	All

Source	Vendor	Product	Version	Platforms
CNA	Zyxel	ATP Series Firmware	affected versions V5.00 through V5.38	Not specified
CNA	Zyxel	USG FLEX Series Firmware	affected versions V5.00 through V5.38	Not specified
CNA	Zyxel	USG FLEX 50W Series Firmware	affected versions V5.10 through V5.38	Not specified
CNA	Zyxel	USG20W-VPN Series Firmware	affected versions V5.10 through V5.38	Not specified
ADP	Zyxel	Usg Flex Firmware	affected 5.00 5.38 custom	Not specified
ADP	Zyxel	Atp Firmware	affected 5.00 5.38 custom	Not specified
ADP	Zyxel	Usg20-vpn Firmware	affected 5.10 5.38 custom	Not specified
ADP	Zyxel	Usg Flex 50w Firmware	affected 5.10 5.38 custom	Not specified

Reference	Source	Link	Tags
www.cisa.gov/known-exploited-vulnerabilities-catalog	134c704f-9b21-4f2e-91b3-4a467353bcc0	www.cisa.gov	US Government Resource
www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory...	[email protected]	www.zyxel.com	Vendor Advisory
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis
CISA Known Exploited Vulnerabilities catalog	CISA	www.cisa.gov	kev

No vendor comments have been submitted for this CVE.

Source	Time	Event
ADP	2024-12-03T00:00:00.000Z	CVE-2024-11667 added to CISA KEV

There are currently no legacy QID mappings associated with this CVE.