CVE Tools
Sign in

CVE-2024-11667

Published: Nov 27, 2024Updated: Oct 27, 2025 Sources: CVE List NVD BDUCWE-22
NVD MITRE
7.5CVSSHIGH
EPSS Score
3.0%
Top 14.3%
CISA KEV
Active Exploitation
Since Dec 3, 2024
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-22

Affected Products

ATP series firmwareZyxelNetworking Infrastructure
USG FLEX series firmwareZyxelNetworking Infrastructure
USG FLEX 50(W) series firmwareZyxelNetworking Infrastructure
USG20(W)-VPN series firmwareZyxelNetworking Infrastructure
Zyxel ZLDZyxel Communications Corp.Networking Infrastructure
zyxelcommercialTWNetworking Infrastructureaka zyxel communications corp.
zyxel communications corp.commercialTWNetworking Infrastructure
and 1 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Dec 3, 2024
Remediation due:Dec 24, 2024
Ransomware:Known ransomware use

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-protecting-against-recent-firewall-threats-11-27-2024
zyxel.com
https://blog.sekoia.io/helldown-ransomware-an-overview-of-this-emerging-threat/
blog.sekoia.io
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-11667
cisa.gov

Timeline

Published
Nov 27, 2024
Added to CISA KEV
Dec 3, 2024
Last Updated
Oct 27, 2025

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2024-11667 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows