Microsoft Windows NT 3.51/NT 4.0 System Process Sechole access control

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

Summaryinfo

A vulnerability was found in Microsoft Windows NT 3.51/NT 4.0 and classified as critical. Affected is an unknown function of the component System Process Handler. Executing a manipulation can lead to access control (Sechole). This vulnerability is registered as CVE-1999-0344. The attack needs to be launched locally. No exploit is available. This vulnerability has a historic impact due to its background and reception. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows NT 3.51/NT 4.0 (Operating System). It has been declared as critical. This vulnerability affects an unknown code of the component System Process Handler. The manipulation with an unknown input leads to a access control vulnerability (Sechole). The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

NT users can gain debug-level access on a system process using the Sechole exploit.

The weakness was published 08/01/1998 as MS98-009 as not defined security bulletin (Website). The advisory is shared for download at support.microsoft.com. This vulnerability was named CVE-1999-0344. The exploitation appears to be easy. The attack needs to be approached locally. A single authentication is needed for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/17/2026). The MITRE ATT&CK project declares the attack technique as T1068. This vulnerability has a historic impact due to its background and reception.

Applying the patch MS98-009 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com.

The vulnerability is also documented in the databases at X-Force (1231) and Vulnerability Center (SBV-693†). Additional details are provided at support.microsoft.com. Similar entry is available at VDB-14197. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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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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VulDB Base Score: 🔍
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Exploitinginfo

Name: Sechole
Class: Access control / Sechole
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS98-009

Timelineinfo

08/01/1998 🔍
08/01/1998 +0 days 🔍
08/01/1998 +0 days 🔍
01/22/2003 +1635 days 🔍
06/19/2014 +4166 days 🔍
04/17/2026 +4320 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS98-009
Status: Confirmed

CVE: CVE-1999-0344 (🔍)
GCVE (CVE): GCVE-0-1999-0344
GCVE (VulDB): GCVE-100-14200
X-Force: 1231
Vulnerability Center: 693 - [MS98-009] NT users can gain debug-level access on a system process using the Sechole exploit., Medium

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 06/19/2014 17:05
Updated: 04/17/2026 14:44
Changes: 06/19/2014 17:05 (47), 05/03/2019 06:58 (16), 04/17/2026 14:44 (17)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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