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Vulnerability record · CVE-1999-0918 · published 3 July 1999
CVE-1999-0918: Microsoft windows 2000 improper input validation vulnerability
Microsoft · Windows 2000
Denial of service in various Windows systems via malformed, fragmented IGMP packets.
7.8 CVSS 2.0 High EPSS 26% · top 2.1% CWE-20 · Improper input validation
7.8CVSS 2.0 base score
26%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD
Description
Denial of service in various Windows systems via malformed, fragmented IGMP packets.
AV:N/AC:L/Au:N/C:N/I:N/A:C
Affected products
4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
Track CVE-1999-0918 inside VULONE
Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.
Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
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Source: NIST National Vulnerability Database (record CVE-1999-0918), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.
