CVE-2002-1768

NONECVSS 0.0

0.0

Cisco IOS 11.1 through 12.2, when HSRP support is not enabled, allows remote attackers to cause a denial of service (CPU consumption) via randomly sized UDP packets to the Hot Standby Routing Protocol (HSRP) port 1985.

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

Published

December 31, 2002

Last Modified

April 16, 2026

References (8)

cve@mitrehttp://archives.neohapsis.com/archives/bugtraq/2002-06/0027.html
cve@mitrehttp://archives.neohapsis.com/archives/bugtraq/2002-06/0050.html
cve@mitrehttp://www.securityfocus.com/bid/4948
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/9282
af854a3a-2127-422b-91ae-364da2661108http://archives.neohapsis.com/archives/bugtraq/2002-06/0027.html
af854a3a-2127-422b-91ae-364da2661108http://archives.neohapsis.com/archives/bugtraq/2002-06/0050.html
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/4948
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/9282

Data Freshness Timeline

(refreshed 12× in last 7d / 16× 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
2026-05-29 13:40 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:37 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
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2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-24 16:42 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-20 11:20 UTCepss_batch
2026-05-20 11:20 UTCepss_batch
2026-05-18 21:29 UTCepss_batch
2026-05-18 21:29 UTCepss_batch

Frequently asked(4)

What is CVE-2002-1768?

CVE-2002-1768 is a none vulnerability published on December 31, 2002. Cisco IOS 11.1 through 12.2, when HSRP support is not enabled, allows remote attackers to cause a denial of service (CPU consumption) via randomly sized UDP packets to the Hot Standby Routing Protocol (HSRP) port 1985.

When was CVE-2002-1768 disclosed?

CVE-2002-1768 was first published in the National Vulnerability Database on December 31, 2002, 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-2002-1768 actively exploited?

CVE-2002-1768 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-2002-1768?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2002-1768, 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-2002-1768

📅 Published

🔄 Last Modified

🔗 References (8)