Unrated severityNVD Advisory· Published Oct 31, 1999· Updated Jun 16, 2026
CVE-1999-1577
CVE-1999-1577
Description
Buffer overflow in HHOpen ActiveX control (hhopen.ocx) 1.0.0.1 for Internet Explorer 4.01 and 5 allows remote attackers to execute arbitrary commands via long arguments to the OpenHelp method.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:microsoft:internet_explorer:4.0.1:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:microsoft:internet_explorer:4.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:internet_explorer:5.0:*:*:*:*:*:*:*
- Range: 1.0.0.1
Patches
Vulnerability mechanics
References
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