Unrated severityNVD Advisory· Published Jul 10, 1997· Updated Apr 16, 2026

CVE-1999-1463

Description

Windows NT 4.0 before SP3 allows remote attackers to bypass firewall restrictions or cause a denial of service (crash) by sending improperly fragmented IP packets without the first fragment, which the TCP/IP stack incorrectly reassembles into a valid session.

Affected products

Microsoft/Windows Nt
cpe:2.3:o:microsoft:windows_nt:*:sp3:*:*:*:*:*:*
Range: <=4.0

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

www.securityfocus.com/archive/1/7219nvdExploitPatchVendor Advisory
exchange.xforce.ibmcloud.com/vulnerabilities/528nvd

News mentions

No linked articles in our index yet.

cvss	0.000
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000