VULNERABILITY INTELLIGENCE

CVE-2003-0567

CVSS score7.8 HIGH
EPSS probability16.58%
CISA KEVNot currently listed
Published2003-08-18
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:C

Description

Cisco IOS 11.x and 12.0 through 12.2 allows remote attackers to cause a denial of service (traffic block) by sending a particular sequence of IPv4 packets to an interface on the device, causing the input queue on that interface to be marked as full.

Weakness classification

  • CWE-20: Improper Input Validation

Primary references