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CVE-1999-0867

5.0 · MEDIUM

Denial of service in IIS 4.0 via a flood of HTTP requests with malformed headers.

Published Aug 11, 1999microsoftCWE-20EPSS 21.52%

Overview

CVE-1999-0867 is a medium-severity vulnerability affecting microsoft commercial_internet_system. It was published on August 11, 1999 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Denial of service in IIS 4.0 via a flood of HTTP requests with malformed headers.

Remediation

Check the references section for vendor advisories and patches from microsoft. Update commercial_internet_system to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refsupport.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ238349Refwww.ciac.org/ciac/bulletins/j-058.shtmlRefwww.securityfocus.com/bid/579Refdocs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-029Refsupport.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ238349Refwww.ciac.org/ciac/bulletins/j-058.shtmlRefwww.securityfocus.com/bid/579Refdocs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-029

How CyberStrike helps

Frequently asked questions

What is CVE-1999-0867?

CVE-1999-0867 is a medium-severity vulnerability affecting microsoft commercial_internet_system. It was published on August 11, 1999 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-1999-0867?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-1999-0867?

Check the references section for vendor advisories and patches from microsoft. Update commercial_internet_system to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-1999-0867?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-1999-0867 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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