CVE-1999-0496
CVE-1999-0496 is a high-severity vulnerability in Microsoft Windows Nt with a CVSS 2.0 base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.
Key facts
- Severity: High (CVSS 2.0 base score 7.2)
- EPSS exploit prediction: 1% (69th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-264
- Affected product: Microsoft Windows Nt
- Published:
- Last modified:
Description
A Windows NT 4.0 user can gain administrative rights by forcing NtOpenProcessToken to succeed regardless of the user's permissions, aka GetAdmin.
Frequently asked questions
- What is CVE-1999-0496?
- A Windows NT 4.0 user can gain administrative rights by forcing NtOpenProcessToken to succeed regardless of the user's permissions, aka GetAdmin.
- How severe is CVE-1999-0496?
- CVE-1999-0496 has a CVSS 2.0 base score of 7.2, rated high severity.
- Is CVE-1999-0496 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-1999-0496?
- CVE-1999-0496 affects Microsoft Windows Nt. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-1999-0496?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-1999-0496 published?
- CVE-1999-0496 was published on 1997-01-01 and last updated on 2026-06-16.
References
Affected products (1)
- cpe:2.3:o:microsoft:windows_nt:4.0:*:*:*:*:*:*:*
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