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Case File

CVE-1999-1157

MEDIUM · CVSS 5 EPSS 13.34%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 1999-12-31 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.0. It affects Windows. Its EPSS score suggests a 13.3% probability of exploitation in the next 30 days. It may be remotely exploitable. It may lead to a denial-of-service condition.

CVE
CVE-1999-1157
Severity
MEDIUM
CVSS
5
EPSS
13.34%
Windows

Original NVD Description

Tcpip.sys in Windows NT 4.0 before SP4 allows remote attackers to cause a denial of service via an ICMP Subnet Mask Address Request packet, when certain multiple IP addresses are bound to the same network interface.