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Fencer Vulns
critical 9.3

CVE-2008-4586 json

Insecure method vulnerability in the MVSNCLientWebAgent61.WebAgent.1 ActiveX control (isusweb.dll 6.1.100.61372) in Macrovision FLEXnet Con…

published 2008-10-15 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-4566

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.2%
EPSS 5.2% chance of exploitation in 30 days, percentile 92%
public exploits
1
Exploit-DB

Summary

Insecure method vulnerability in the MVSNCLientWebAgent61.WebAgent.1 ActiveX control (isusweb.dll 6.1.100.61372) in Macrovision FLEXnet Connect 6.1 allows remote attackers to force the download and execution of arbitrary files via the DownloadAndExecute method.

Timeline

  1. First public exploit (EDB-4913)
  2. Published

Exploit prediction

5.17% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-4913 Macrovision FlexNet - 'isusweb.dll' DownloadAndExecute Method remote, 2008-01-15
  • securityfocus.com http://www.securityfocus.com/bid/27279 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

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.