VulnerabilityAnalyzed

CVE-2024-11667

Zyxel Multiple Firewalls Path Traversal Vulnerability

KEVCRITICAL 9.8EPSS 2.93%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 24 December 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

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 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 2.93% probability · 86th percentile
CISA KEV: Listed 3 December 2024 · due 24 December 2024 · used in ransomware campaigns
Weakness: CWE-22
Affected: zyxel/zld
Source: security@zyxel.com.tw

CISA notes

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

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.