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CVE-20XX-?

agent?

CVE-1999-0861

2.6 LOW 3% exploit odds No fix listed

What it is

Race condition in the SSL ISAPI filter in IIS and other servers may leak information in plaintext.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 3.2% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1999-08-11 04:00 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 21:49 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 3.2% in the next 30 days (EPSS).
Severity: 2.6 LOW (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 1999-08-11 04:00 UTC
Last modified: 2026-06-16 21:49 UTC
Exploit probability: 3.2% · EPSS, next 30 days
Weakness: CWE-362 · Race condition
Record status: Modified

Affected

Microsoft Commercial Internet System 2.0
Microsoft Commercial Internet System 2.5
Microsoft Internet Information Server 4.0
Microsoft Site Server 3.0
Microsoft Site Server Commerce 3.0

Attack profile CVSS 2.0 · 2.6

Attack vector: Network
Complexity: High
Authentication: None
Confidentiality: Partial
Integrity: None
Availability: None

Raw vector

AV:N/AC:H/Au:N/C:P/I:N/A:N

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-1999-0861.md and follow it. Check whether this project is affected by CVE-1999-0861. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record