ZyXEL ZyWALL 10 malformed ARP packet denial of service

zyxel-zywall10-arp-dos (8436) The risk level is classified as MediumMedium Risk


ZyWALL is vulnerable to a denial of service attack. A remote attacker could send a malformed ARP packet with an invalid MAC address and the IP address of the device to cause the device to drop the LAN connection. The device must be restarted to regain normal functionality.


Denial of Service


Upgrade to the latest firmware version of ZyWALL 10 (V3.50(WA.2) or later), available from the ZyXEL Web site. See References.


Platforms Affected:

  • ZyXEL ZyWALL 10 prior to V3.50(WA.2)


Mar 11, 2002

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