ZyXEL ZyWALL 10 before 3.50 allows remote attackers to cause a denial of service via an…
Priority LOW 26Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
ZyXEL ZyWALL 10 before 3.50 allows remote attackers to cause a denial of service via an ARP packet with the firewall's IP address and an incorrect MAC address, which causes the firewall to disable the LAN interface.
Why it matters now
EPSS 0.0176 78th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:zyxel:zywall10:3.20_wa0:*:*:*:*:*:*:* | 3.20_wa0 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zywall10:3.20_wa1:*:*:*:*:*:*:* | 3.20_wa1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zywall10:3.24_wa0:*:*:*:*:*:*:* | 3.24_wa0 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zywall10:3.24_wa1:*:*:*:*:*:*:* | 3.24_wa1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zywall10:3.24_wa2:*:*:*:*:*:*:* | 3.24_wa2 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zywall10:3.50_wa1:*:*:*:*:*:*:* | 3.50_wa1 | Vulnerable | Zyxel |
- cpe:2.3:h:zyxel:zywall10:3.20_wa0:*:*:*:*:*:*:* Versions 3.20_wa0 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zywall10:3.20_wa1:*:*:*:*:*:*:* Versions 3.20_wa1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zywall10:3.24_wa0:*:*:*:*:*:*:* Versions 3.24_wa0 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zywall10:3.24_wa1:*:*:*:*:*:*:* Versions 3.24_wa1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zywall10:3.24_wa2:*:*:*:*:*:*:* Versions 3.24_wa2 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zywall10:3.50_wa1:*:*:*:*:*:*:* Versions 3.50_wa1 Vulnerable ·Zyxel
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2002-0438
- 2026-10-03 Alias added: GHSA-c9q2-8cmh-3jvf
References
Advisory 1
More Zyxel Zywall10 vulnerabilities
- TI-2004-01665 Cross-site scripting (XSS) vulnerability in the web management interface in ZyWALL 10… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2002-0438 · CVE Program
- CVE-2002-0438 · NVD
- FIRST EPSS
- GHSA-c9q2-8cmh-3jvf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences