Zyxel Multiple Firewalls Path Traversal
Zyxel Multiple Firewalls
Multiple Zyxel firewalls contain a path traversal vulnerability in the web management interface that could allow an attacker to download or upload files via a crafted URL. Added to the CISA KEV catalog on 2024-12-03. CISA lists known use in ransomware campaigns.
Why this severity: CVSS 7.5 (v3.1, CNA), actively exploited (CISA KEV); known ransomware use
- Started
- Nov 27, 2024
- Closed
- Dec 3, 2024
Affected
- See vendor advisory (versions are not listed in the KEV record)
Fixed in
- See vendor advisory linked in sources
Timeline2
Advisories3
Notes & caveats
Derived from the CISA KEV JSON feed (catalogVersion 2026.10.21); CVSS from the CVE record (cveawg.mitre.org). startedAt is the CVE publication date when it fell in 2024 before the KEV listing, else the KEV dateAdded; exploitation may have begun earlier. closedAt is the KEV listing date (a fix or mitigation was available then unless noted).
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