CVE-1999-0667

NONECVSS 0.0Weaponized

0.0

The ARP protocol allows any host to spoof ARP replies and poison the ARP cache to conduct IP address spoofing or a denial of service.

CVSS v3: —
EG Score: —
EPSS: 98.3%
KEV: Not listed

Published

September 19, 1997

Last Modified

April 16, 2026

References (2)

cve@mitrehttps://marc.info/?l=bugtraq&m=87602880019797&w=2
af854a3a-2127-422b-91ae-364da2661108https://marc.info/?l=bugtraq&m=87602880019797&w=2

Data Freshness Timeline

(refreshed 10× 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
2026-05-28 13:42 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
2026-05-27 13:37 UTCepss_batch
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
2026-05-21 22:38 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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Metasploit module). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Metasploitauxiliary/spoof/arp/arp_poisoning✓ verified
First seen Dec 22, 1999
ARP Spoof
Open source ↗

Frequently asked(4)

What is CVE-1999-0667?

CVE-1999-0667 is a none vulnerability published on September 19, 1997. The ARP protocol allows any host to spoof ARP replies and poison the ARP cache to conduct IP address spoofing or a denial of service.

When was CVE-1999-0667 disclosed?

CVE-1999-0667 was first published in the National Vulnerability Database on September 19, 1997, 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-1999-0667 actively exploited?

CVE-1999-0667 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-1999-0667?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-1999-0667, 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-1999-0667

📅 Published

🔄 Last Modified

🔗 References (2)