CVE-1999-1577
UnknownEPSS 19.49%
Last modified
CVE-1999-1577 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 19.49% chance of exploitation in the next 30 days.
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.
Metrics
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Internet Explorer | 4.0.1 |
| Microsoft | Internet Explorer | 5.0 |
References
- http://www.kb.cert.org/vuls/id/29795US Government Resource
- http://www.kb.cert.org/vuls/id/29795US Government Resource
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-1999-1577?
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.
How severe is CVE-1999-1577?
Severity scoring for CVE-1999-1577 is pending analysis. The EPSS model estimates a 19.49% probability of exploitation in the next 30 days.
How do I fix CVE-1999-1577?
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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Are you affected by CVE-1999-1577?
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Scan your code nowSource: NVD / NIST