Skip to content
Fencer Vulns
medium 5.1

CVE-1999-1578 json

Buffer overflow in Registration Wizard ActiveX control (regwizc.dll, InvokeRegWizard) 3.0.0.0 for Internet Explorer 4.01 and 5 allows remot…

published 1999-09-24 27 y ago modified 2026-06-16 4 mo ago also EUVD-1999-1559

cvss
5.1
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
19.4%
EPSS 19.4% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB

Summary

Buffer overflow in Registration Wizard ActiveX control (regwizc.dll, InvokeRegWizard) 3.0.0.0 for Internet Explorer 4.01 and 5 allows remote attackers to execute arbitrary commands.

Patch / fix

Timeline

  1. Published
  2. First public exploit (EDB-19528)

Exploit prediction

19.44% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-19528 Microsoft Internet Explorer 4.1/5 - Registration Wizard Buffer Overflow local, 1999-09-27
  • kb.cert.org http://www.kb.cert.org/vuls/id/37556 referenced PoC, tagged "exploit" by a source, unverified
  • securityfocus.com http://www.securityfocus.com/bid/671 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.1 AV:N/AC:H/Au:N/C:P/I:P/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.