VULNERABILITY INTELLIGENCE
CVE-2002-2316
CVSS score5 MEDIUM
EPSS probability1.23%
CISA KEVNot currently listed
Published2002-12-31
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:P/A:N
Description
Cisco Catalyst 4000 series switches running CatOS 5.5.5, 6.3.5, and 7.1.2 do not always learn MAC addresses from a single initial packet, which causes unicast traffic to be broadcast across the switch and allows remote attackers to obtain sensitive network information by sniffing.