VULNERABILITY INTELLIGENCE

CVE-2013-5503

CVSS score7.8 HIGH
EPSS probability1.33%
CISA KEVNot currently listed
Published2013-10-02
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:C

Description

The UDP process in Cisco IOS XR 4.3.1 does not free packet memory upon detecting full packet queues, which allows remote attackers to cause a denial of service (memory consumption) via UDP packets to listening ports, aka Bug ID CSCue69413.

Primary references