How severe is CVE-2001-0429?

CVE-2001-0429 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2001-0429 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0429?

CVE-2001-0429 primarily affects Cisco Catos. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2001-0429?

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

When was CVE-2001-0429 published?

CVE-2001-0429 was published on 2001-07-02 and last updated on 2026-06-16.

CVE-2001-0429

CVE-2001-0429 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% (70th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cisco Catos
Published: 2001-07-02
Last modified: 2026-06-16

Description

Cisco Catalyst 5000 series switches 6.1(2) and earlier will forward an 802.1x frame on a Spanning Tree Protocol (STP) blocked port, which causes a network storm and a denial of service.

Frequently asked questions

What is CVE-2001-0429?: Cisco Catalyst 5000 series switches 6.1(2) and earlier will forward an 802.1x frame on a Spanning Tree Protocol (STP) blocked port, which causes a network storm and a denial of service.
How severe is CVE-2001-0429?: CVE-2001-0429 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2001-0429 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0429?: CVE-2001-0429 primarily affects Cisco Catos. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2001-0429?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2001-0429 published?: CVE-2001-0429 was published on 2001-07-02 and last updated on 2026-06-16.

References

Affected products (7)

cpe:2.3:o:cisco:catos:4.5\(11\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:catos:4.5.10:*:*:*:*:*:*:*
cpe:2.3:o:cisco:catos:5.5\(4b\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:catos:5.5\(6\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:catos:6.1\(1c\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:catos:6.1\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:catos:6.1.2:*:*:*:*:*:*:*

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