How severe is CVE-2002-2316?

CVE-2002-2316 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2002-2316 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-2316?

CVE-2002-2316 primarily affects Cisco Catos. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2002-2316?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2002-2316 published?

CVE-2002-2316 was published on 2002-12-31 and last updated on 2026-06-16.

CVE-2002-2316

CVE-2002-2316 is a medium-severity vulnerability in Cisco Catos with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cisco Catos
Published: 2002-12-31
Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2002-2316?: 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.
How severe is CVE-2002-2316?: CVE-2002-2316 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2002-2316 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-2316?: CVE-2002-2316 primarily affects Cisco Catos. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-2316?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2002-2316 published?: CVE-2002-2316 was published on 2002-12-31 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:o:cisco:catos:5.5\(5\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:catos:6.3\(5\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:catos:7.1\(2\):*:*:*:*:*:*:*

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