CVE-2001-0428

NONECVSS 0.0

0.0

Cisco VPN 3000 series concentrators before 2.5.2(F) allow remote attackers to cause a denial of service via an IP packet with an invalid IP option.

CVSS v3: —
EG Score: —
EPSS: 73.7%
KEV: Not listed

Published

July 2, 2001

Last Modified

April 16, 2026

References (8)

cve@mitrehttp://www.cisco.com/warp/public/707/vpn3k-ipoptions-vuln-pub.shtml
cve@mitrehttp://www.osvdb.org/1786
cve@mitrehttp://www.securityfocus.com/bid/2573
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/6360
af854a3a-2127-422b-91ae-364da2661108http://www.cisco.com/warp/public/707/vpn3k-ipoptions-vuln-pub.shtml
af854a3a-2127-422b-91ae-364da2661108http://www.osvdb.org/1786
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/2573
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/6360

Data Freshness Timeline

(refreshed 13× in last 7d / 19× 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.

2026-05-29 13:40 UTCepss_batch
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Frequently asked(4)

What is CVE-2001-0428?

CVE-2001-0428 is a none vulnerability published on July 2, 2001. Cisco VPN 3000 series concentrators before 2.5.2(F) allow remote attackers to cause a denial of service via an IP packet with an invalid IP option.

When was CVE-2001-0428 disclosed?

CVE-2001-0428 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-2001-0428 actively exploited?

CVE-2001-0428 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 73.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2001-0428?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2001-0428, 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-2001-0428

📅 Published

🔄 Last Modified

🔗 References (8)