CVE-2001-0429

NONECVSS 0.0

0.0

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.

CVSS v3: —
EG Score: —
EPSS: 66.4%
KEV: Not listed

Published

July 2, 2001

Last Modified

April 16, 2026

References (8)

cve@mitrehttp://www.ciac.org/ciac/bulletins/l-072.shtml
cve@mitrehttp://www.cisco.com/warp/public/707/cat5k-8021x-vuln-pub.shtml
cve@mitrehttp://www.securityfocus.com/bid/2604
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/6379
af854a3a-2127-422b-91ae-364da2661108http://www.ciac.org/ciac/bulletins/l-072.shtml
af854a3a-2127-422b-91ae-364da2661108http://www.cisco.com/warp/public/707/cat5k-8021x-vuln-pub.shtml
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/2604
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/6379

Data Freshness Timeline

(refreshed 14× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(4)

What is CVE-2001-0429?

CVE-2001-0429 is a none vulnerability published on July 2, 2001. 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.

When was CVE-2001-0429 disclosed?

CVE-2001-0429 was first published in the National Vulnerability Database on July 2, 2001, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2001-0429 actively exploited?

CVE-2001-0429 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 66.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2001-0429?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2001-0429, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2001-0429

📅 Published

🔄 Last Modified

🔗 References (8)