How severe is CVE-1999-1317?

CVE-1999-1317 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-1999-1317 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-1317?

CVE-1999-1317 affects Microsoft Windows Nt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-1317?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-1999-1317 published?

CVE-1999-1317 was published on 1999-12-31 and last updated on 2026-06-16.

CVE-1999-1317

CVE-1999-1317 is a medium-severity vulnerability in Microsoft Windows Nt with a CVSS 2.0 base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 4.6)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Windows Nt
Published: 1999-12-31
Last modified: 2026-06-16

Description

Windows NT 4.0 SP4 and earlier allows local users to gain privileges by modifying the symbolic link table in the \?? object folder using a different case letter (upper or lower) to point to a different device.

Frequently asked questions

What is CVE-1999-1317?: Windows NT 4.0 SP4 and earlier allows local users to gain privileges by modifying the symbolic link table in the \?? object folder using a different case letter (upper or lower) to point to a different device.
How severe is CVE-1999-1317?: CVE-1999-1317 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-1999-1317 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-1317?: CVE-1999-1317 affects Microsoft Windows Nt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-1317?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-1317 published?: CVE-1999-1317 was published on 1999-12-31 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:microsoft:windows_nt:*:sp4:*:*:*:*:*:*

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