CVE-2002-2316 — MEDIUM severity vulnerability (Cisco Catalyst 4000 series switches running CatOS 5.5.5, 6.3)
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.
| CVE ID | CVE-2002-2316 |
|---|---|
| Severity | MEDIUM |
| CVSS score | 5.0 |
| CVSS vector | AV:N/AC:L/Au:N/C:N/I:P/A:N |
| CWE | NVD-CWE-Other |
| Status | Modified |
| Published | 2002-12-31 |
| Last modified | 2026-04-16 |
| 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. |
| Source | NIST National Vulnerability Database |
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