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Fencer Vulns
critical 9.3

CVE-2009-4219 json

Stack-based buffer overflow in the MYACTIVEX.MyActiveXCtrl.1 ActiveX control in MyActiveX.ocx 1.4.8.0 in Haihaisoft Universal Player allows…

published 2009-12-07 16 y ago modified 2026-06-16 4 mo ago also EUVD-2009-4188

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
9.3%
EPSS 9.3% chance of exploitation in 30 days, percentile 95%
public exploits
1
Exploit-DB

Summary

Stack-based buffer overflow in the MYACTIVEX.MyActiveXCtrl.1 ActiveX control in MyActiveX.ocx 1.4.8.0 in Haihaisoft Universal Player allows remote attackers to execute arbitrary code via a long URL property value. NOTE: some of these details are obtained from third party information.

Timeline

  1. First public exploit (EDB-10269)
  2. Published

Exploit prediction

9.27% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-10269 Haihaisoft Universal Player 1.4.8.0 - 'URL' Property ActiveX Buffer Overflow remote, 2009-12-01
  • shinnai.net http://www.shinnai.net/exploits/ZzLsi6TIfSuVPh1kPHmP.txt referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.