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Fencer Vulns
high 7.6

CVE-2006-4138 in the critical feed json

Multiple unspecified vulnerabilities in Microsoft Windows Help File viewer (winhlp32.exe) allow user-assisted attackers to execute arbitrar…

published 2006-08-14 20 y ago modified 2026-06-16 4 mo ago also EUVD-2006-4128

cvss
7.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
20.1%
EPSS 20.1% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB

Summary

Multiple unspecified vulnerabilities in Microsoft Windows Help File viewer (winhlp32.exe) allow user-assisted attackers to execute arbitrary code via crafted HLP files.

Timeline

  1. First public exploit (EDB-28381)
  2. Published

Exploit prediction

20.10% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-28381 Microsoft Windows XP/2000/2003 help - Multiple Vulnerabilities dos, 2006-08-12
  • securityfocus.com http://www.securityfocus.com/bid/19490 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.6 AV:N/AC:H/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.