CVE Catalog
CVE-1999-0224
MediumExploitation Probability (EPSS)
Very high risk16.79%
97th percentile - higher than 97% of all known CVEs
Summary
The Windows NT messenger service is vulnerable to a denial of service (DoS) attack caused by a long username.
Risk Assessment
An attacker can exploit this vulnerability to disrupt the service, leading to system unavailability for users.
Recommendation
It is recommended to limit the length of usernames and to monitor and secure the messenger service against unauthorized access.
Original NVD description (English source)
Denial of service in Windows NT messenger service through a long username.