CVE-1999-0918

Exp

Denial of service in various Windows systems via malformed, fragmented IGMP packets.

Published: 1999-07-03 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-0918 is rated High Exploit Risk (85/100): CVSS High severity, with high exploitation likelihood (EPSS 30.47%, 98th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +4.49% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-1999-0918

EDB-ID Source Kind Published Link
19414 exploit_db edb 1999-07-03 Exploit-DB ↗
19413 exploit_db edb 1999-07-03 Exploit-DB ↗
19415 exploit_db edb 1999-04-06 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-1999-0918

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-20 25.99% 30.47% +4.49%
2 2026-06-15 40.85% 25.99% -14.86%
3 2026-03-21 — 40.85% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-0918

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-1999-0918

Affected software / configurations for CVE-1999-0918

Vendor Product Version Raw CPE
microsoft windows_2000 — cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:*
microsoft windows_95 — cpe:2.3:o:microsoft:windows_95:*:*:*:*:*:*:*:*
microsoft windows_98 — cpe:2.3:o:microsoft:windows_98:*:gold:*:*:*:*:*:*
microsoft windows_nt 4.0 cpe:2.3:o:microsoft:windows_nt:4.0:*:*:*:*:*:*:*
microsoft windows_nt 4.0 cpe:2.3:o:microsoft:windows_nt:4.0:sp1:*:*:*:*:*:*
microsoft windows_nt 4.0 cpe:2.3:o:microsoft:windows_nt:4.0:sp2:*:*:*:*:*:*
microsoft windows_nt 4.0 cpe:2.3:o:microsoft:windows_nt:4.0:sp3:*:*:*:*:*:*
microsoft windows_nt 4.0 cpe:2.3:o:microsoft:windows_nt:4.0:sp4:*:*:*:*:*:*
microsoft windows_nt 4.0 cpe:2.3:o:microsoft:windows_nt:4.0:sp5:*:*:*:*:*:*

References for CVE-1999-0918

cvelogic Threat Intelligence