CVE-1999-1132

Medium

Published: 31/12/1999(UTC)Updated: 16/06/2026(UTC)Translated: 18/06/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Very high risk

15.04%

96th percentile - higher than 96% of all known CVEs

Summary

Windows NT 4.0 allows remote attackers to cause a denial of service (crash) via extra source routing data such as a Routing Information Field (RIF) field with a hop count greater than 7 or a list containing duplicate Token Ring IDs.

Risk Assessment

Attackers can exploit this vulnerability to remotely crash the system, leading to service availability interruptions.

Recommendation

It is recommended to upgrade the system to a newer version or implement appropriate network security measures to mitigate the risk of attack.

Original NVD description (English source)

Windows NT 4.0 allows remote attackers to cause a denial of service (crash) via extra source routing data such as (1) a Routing Information Field (RIF) field with a hop count greater than 7, or (2) a list containing duplicate Token Ring IDs.