CVE-2008-4299

Name: CVE-2008-4299
Creator: NVD / NIST
Published: 2008-09-29T17:17:29.22+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 15.86%

Last modified Jun 16, 2026

CVE-2008-4299 is a vulnerability of currently unknown severity. A certain ActiveX control in the Microsoft Internet Authentication Service (IAS) Helper COM Component in iashlpr.dll allows remote attackers to cause a denial of service (browser crash) via a large integer value in the first argument to the PutProperty method. NOTE: this issue was disclosed by an unreliable researcher, so it might be incorrect.. EPSS estimates a 15.86% chance of exploitation in the next 30 days.

Description

A certain ActiveX control in the Microsoft Internet Authentication Service (IAS) Helper COM Component in iashlpr.dll allows remote attackers to cause a denial of service (browser crash) via a large integer value in the first argument to the PutProperty method. NOTE: this issue was disclosed by an unreliable researcher, so it might be incorrect.

Metrics

EPSS Probability

15.86%

96.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-189

Affected Software

Vendor	Product	Versions
Microsoft	Internet Authentication Service Helper Com Component	All versions

References

Timeline

Published: Sep 29, 2008
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2008-4299?

How severe is CVE-2008-4299?

Severity scoring for CVE-2008-4299 is pending analysis. The EPSS model estimates a 15.86% probability of exploitation in the next 30 days.

How do I fix CVE-2008-4299?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2008-4299?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST