Microsoft Windows NT 4.0 Netbt.sys denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Microsoft Windows NT 4.0. Affected by this vulnerability is an unknown functionality of the file Netbt.sys. Performing a manipulation with the input 0.0.0.0 results in denial of service. This vulnerability is reported as CVE-1999-1222. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Microsoft Windows NT 4.0 (Operating System). This affects some unknown processing of the file Netbt.sys. The manipulation with the input value 0.0.0.0 leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

Netbt.sys in Windows NT 4.0 allows remote malicious DNS servers to cause a denial of service (crash) by returning 0.0.0.0 as the IP address for a DNS host name lookup.

The weakness was disclosed 12/31/1999 as not defined knowledge base article (Website). It is possible to read the advisory at support.microsoft.com. This vulnerability is uniquely identified as CVE-1999-1222. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2000 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (3893). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Windows 2000

Timelineinfo

12/31/1999 🔍
12/31/1999 +0 days 🔍
06/23/2014 +5288 days 🔍
04/20/2026 +4319 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: support.microsoft.com
Status: Confirmed

CVE: CVE-1999-1222 (🔍)
GCVE (CVE): GCVE-0-1999-1222
GCVE (VulDB): GCVE-100-15147
X-Force: 3893 - Invalid DNS record could cause a Netbt.sys denial of service

Entryinfo

Created: 06/23/2014 10:10
Updated: 04/20/2026 04:03
Changes: 06/23/2014 10:10 (41), 04/05/2019 11:03 (12), 04/20/2026 04:03 (18)
Complete: 🔍
Cache ID: 216::103

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