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Fencer Vulns
medium 5.0

CVE-1999-0224 json

Denial of service in Windows NT messenger service through a long username.

published 1999-07-23 27 y ago modified 2026-06-16 4 mo ago also EUVD-1999-0224

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
16.8%
EPSS 16.8% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB

Summary

Denial of service in Windows NT messenger service through a long username.

Timeline

  1. First public exploit (EDB-329)
  2. Published

Exploit prediction

16.79% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-329 Microsoft Windows NT - Crash with an Extra Long 'Username' Denial of Service dos, 1997-04-01

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.