CVE-2024-11667 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2024-12-03
A directory traversal vulnerability in the web management interface of multiple Zyxel firewall series allows a remote attacker to download or upload files via a crafted URL. The flaw affects ATP, USG FLEX, and USG20(W)-VPN series running specific firmware versions between V5.00 and V5.38.
Yes. CVE-2024-11667 is known to be exploited in the wild, first recorded on 3 December 2024. Treat it as urgent.
How severe is CVE-2024-11667?
Critical severity, with a CVSS score of 9.8, published 3 December 2024.
Which products and versions are affected?
Zyxel ATP series firmware V5.00 through V5.38; Zyxel USG FLEX series firmware V5.00 through V5.38; Zyxel USG FLEX 50(W) series firmware V5.10 through V5.38; Zyxel USG20(W)-VPN series firmware V5.10 through V5.38.
Is there a fix for CVE-2024-11667?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2024-11667 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2024-11667?
Check whether you run Zyxel Firewalls or Zyxel Multiple Firewalls. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Zyxel ATP series firmware V5.00 through V5.38
Zyxel USG FLEX series firmware V5.00 through V5.38
Zyxel USG FLEX 50(W) series firmware V5.10 through V5.38
Zyxel USG20(W)-VPN series firmware V5.10 through V5.38
Timeline
2024-11-27: disclosed: Initial advisory by Zyxel Corporation
2024-11-27: other: NVD Published Date
2024-12-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog