CVE-1999-0412

CVE-1999-0412 is a high-severity vulnerability in Microsoft Internet Information Server with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 10% places it in the 95th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

In IIS and other web servers, an attacker can attack commands as SYSTEM if the server is running as SYSTEM and loading an ISAPI extension.

Frequently asked questions

What is CVE-1999-0412?
In IIS and other web servers, an attacker can attack commands as SYSTEM if the server is running as SYSTEM and loading an ISAPI extension.
How severe is CVE-1999-0412?
CVE-1999-0412 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-1999-0412 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0412?
CVE-1999-0412 primarily affects Microsoft Internet Information Server. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-1999-0412?
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-1999-0412 published?
CVE-1999-0412 was published on 1999-02-19 and last updated on 2026-06-16.

References

Affected products (3)

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