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Fencer Vulns
medium 5.0

CVE-2004-1361 json

Integer underflow in winhlp32.exe in Windows NT, Windows 2000 through SP4, Windows XP through SP2, and Windows 2003 allows remote attackers…

published 2004-12-23 21 y ago modified 2026-06-16 4 mo ago also EUVD-2004-1358

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
20.0%
EPSS 20.0% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

Integer underflow in winhlp32.exe in Windows NT, Windows 2000 through SP4, Windows XP through SP2, and Windows 2003 allows remote attackers to execute arbitrary code via a malformed .hlp file, which leads to a heap-based buffer overflow.

Exploit prediction

20.01% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • securityfocus.com http://www.securityfocus.com/bid/12091 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

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.