# CVE-1999-0534: Microsoft Windows NT excessive user privileges assignment

Source: https://junglewise.ai/threats/cve-1999-0534-microsoft-windows-nt-excessive-user-privileges-assignment  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 1997-01-01. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-1999-0534 · Severity: medium · CVSS 4.6 · Published 1997-01-01

A configuration issue in Windows NT allows standard users to be granted excessive administrative privileges. This could allow an individual with local access to perform sensitive actions such as bypassing security audits, modifying system files, or taking ownership of data they should not be able to access. Such misconfigurations can lead to a total compromise of the workstation or server's integrity and confidentiality.

Technologies: [Microsoft Windows 2000](https://junglewise.ai/threats/technologies/windows-2000), [Microsoft Windows Nt](https://junglewise.ai/threats/technologies/windows-nt). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-1999-0534 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-1999-0534 being exploited in the wild.

**How severe is CVE-1999-0534?** Medium severity, with a CVSS score of 4.6, published 1 January 1997.

**Which products and versions are affected?** Microsoft Windows NT.

**Is there a fix for CVE-1999-0534?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-1999-0534 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-1999-0534?** Check whether you run Microsoft Windows 2000 or Microsoft Windows Nt. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This vulnerability describes a state of excessive privilege assignment within the Windows NT operating system. Users may be granted sensitive rights including, but not limited to, 'Act as part of the operating system', 'Debug programs', 'Take ownership of files or other objects', and 'Load and unload device drivers'. An attacker with local access and these privileges can bypass security descriptors, escalate their authority to SYSTEM level, or interfere with kernel-mode operations. The root cause is typically insecure default configurations or administrative errors in User Rights Assignment. Remediation involves auditing and restricting user rights via the User Manager or Group Policy to follow the principle of least privilege.

## Affected products

- Microsoft Windows NT

## Timeline

- 1997-01-01: disclosed

## References

- [https://www.cve.org/CVERecord?id=CVE-1999-0534](https://www.cve.org/CVERecord?id=CVE-1999-0534)

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