Microsoft Windows 2000/NT OS/2/POSIX Subsystem privileges management
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.1 | $5k-$25k | 0.00 |
Summary
A vulnerability described as critical has been identified in Microsoft Windows 2000/NT. This affects an unknown function of the component OS/2/POSIX Subsystem. The manipulation results in privileges management. This vulnerability was named CVE-1999-0654. There is no available exploit. Modifying the configuration settings is advised.
Details
A vulnerability classified as critical has been found in Microsoft Windows 2000/NT (Operating System). Affected is an unknown code block of the component OS/2/POSIX Subsystem. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
The OS/2 or POSIX subsystem in NT is enabled.
The weakness was presented 01/01/1999. This vulnerability is traded as CVE-1999-0654. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 10/24/2025). This vulnerability is assigned to T1068 by the MITRE ATT&CK project.
The commercial vulnerability scanner Qualys is able to test this issue with plugin 90024 (Enabled OS2 Subsystem).
It is possible to mitigate the problem by applying the configuration setting .
The vulnerability is also documented in the databases at X-Force (2478) and Vulnerability Center (SBV-678†). If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.microsoft.com/
- Product: https://www.microsoft.com/en-us/windows
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 7.1
VulDB Base Score: 7.3
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Privileges managementCWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: ConfigStatus: 🔍
0-Day Time: 🔍
Timeline
01/01/1999 🔍01/01/1999 🔍
01/01/1999 🔍
01/22/2003 🔍
06/19/2014 🔍
10/24/2025 🔍
Sources
Vendor: microsoft.comProduct: microsoft.com
Status: Not defined
CVE: CVE-1999-0654 (🔍)
GCVE (CVE): GCVE-0-1999-0654
GCVE (VulDB): GCVE-100-14418
X-Force: 2478
Vulnerability Center: 678 - OS/2 or POSIX subsystem in Windows NT/2000 is enabled, Info
Entry
Created: 06/20/2014 01:41Updated: 10/24/2025 08:12
Changes: 06/20/2014 01:41 (52), 10/24/2025 08:12 (18)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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