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Fencer Vulns
medium 5.0

CVE-2005-2225 json

Microsoft MSN Messenger allows remote attackers to cause a denial of service via a plaintext message containing the ".pif" string, which is…

published 2005-07-12 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-2226

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
16.4%
EPSS 16.4% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

Microsoft MSN Messenger allows remote attackers to cause a denial of service via a plaintext message containing the ".pif" string, which is interpreted as a malicious file extension and causes users to be kicked from a group conversation. NOTE: it has been reported that Gaim is also affected, so this may be an issue in the protocol or MSN servers.

Exploit prediction

16.44% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • securitytracker.com http://securitytracker.com/id?1014444 referenced PoC, tagged "exploit" by a source, unverified
  • digitalparadox.org http://www.digitalparadox.org/viewadvisories.ah?view=45 referenced PoC, tagged "exploit" by a source, unverified
  • messenger-blog.com http://www.messenger-blog.com/?p=146 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:N/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.