Zyxel USG50 Security Appliance and NWA3560-N Access Point allow remote attackers to cause a denial of service (CPU consumption) via a flood of ICMPv4 Port Unreachable packets.
http://www.zyxel.com/support/announcement_blacknurse_attack.shtml
http://www.securityfocus.com/bid/97105
Source: Mitre, NVD
Published: 2017-02-21
Updated: 2026-05-13
Base Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
Severity: High
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.00987